diff --git a/README.recipes.md b/README.recipes.md
index a283e47..be638b7 100644
--- a/README.recipes.md
+++ b/README.recipes.md
@@ -181,7 +181,7 @@
 
 [DEPS](/recipes/dart/neo.py#16): [bisect\_build](#recipe_modules-bisect_build), [dart](#recipe_modules-dart), [depot\_tools/gitiles][depot_tools/recipe_modules/gitiles], [depot\_tools/osx\_sdk][depot_tools/recipe_modules/osx_sdk], [recipe\_engine/buildbucket][recipe_engine/recipe_modules/buildbucket], [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/raw\_io][recipe_engine/recipe_modules/raw_io], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
-&mdash; **def [RunSteps](/recipes/dart/neo.py#85)(api, properties):**
+&mdash; **def [RunSteps](/recipes/dart/neo.py#84)(api, properties):**
 
 &mdash; **def [bisection\_is\_enabled](/recipes/dart/neo.py#64)(api):**
 
diff --git a/recipe_modules/dart/api.py b/recipe_modules/dart/api.py
index 94f194c..990fa23 100644
--- a/recipe_modules/dart/api.py
+++ b/recipe_modules/dart/api.py
@@ -501,7 +501,7 @@
     self.m.gsutil.upload(*args, name='upload %s' % filename)
 
   def _update_blamelist(self, results_by_configuration):
-    if not self._branch_builder():
+    if not self._supports_result_database() or self.m.runtime.is_experimental:
       return
     access_token = self.m.service_account.default().get_access_token(
         ['https://www.googleapis.com/auth/cloud-platform'])
diff --git a/recipe_modules/dart/examples/example.expected/bisection-does-not-refer-to-latest-build-or-publish-results.json b/recipe_modules/dart/examples/example.expected/bisection-does-not-refer-to-latest-build-or-publish-results.json
index 4bce16e..9c56318 100644
--- a/recipe_modules/dart/examples/example.expected/bisection-does-not-refer-to-latest-build-or-publish-results.json
+++ b/recipe_modules/dart/examples/example.expected/bisection-does-not-refer-to-latest-build-or-publish-results.json
@@ -1957,7 +1957,7 @@
       "RECIPE_REPO[depot_tools]/gsutil.py",
       "----",
       "cp",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/results.json"
     ],
     "cwd": "[CACHE]/builder/sdk",
@@ -2057,7 +2057,7 @@
       "RECIPE_REPO[depot_tools]/gsutil.py",
       "----",
       "cp",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "gs://dart-test-results/configuration/master/dartk-linux-product-x64/1357/results.json"
     ],
     "cwd": "[CACHE]/builder/sdk",
@@ -2090,6 +2090,125 @@
   },
   {
     "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
+      "--",
+      "RECIPE_REPO[depot_tools]/gsutil.py",
+      "----",
+      "cp",
+      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
+      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/revision"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "upload new results.gsutil upload revision (3)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/revision@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
+      "--",
+      "RECIPE_REPO[depot_tools]/gsutil.py",
+      "----",
+      "cp",
+      "",
+      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/logs.json"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "upload new results.gsutil upload logs.json (3)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/logs.json@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
+      "--",
+      "RECIPE_REPO[depot_tools]/gsutil.py",
+      "----",
+      "cp",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/results.json"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "upload new results.gsutil upload results.json (3)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/results.json@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
+      "--",
+      "RECIPE_REPO[depot_tools]/gsutil.py",
+      "----",
+      "cp",
+      "",
+      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/flaky.json"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "upload new results.gsutil upload flaky.json (3)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/flaky.json@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "luci-auth",
+      "token",
+      "-scopes",
+      "https://www.googleapis.com/auth/cloud-platform",
+      "-lifetime",
+      "3m"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "get access token for default account"
+  },
+  {
+    "cmd": [
+      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
+      "[CACHE]/builder/sdk/tools/bots/update_blamelists.dart",
+      "--results",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "--auth-token",
+      "extra.secret.token.should.not.be.logged"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "update blamelists for configuration \"dartk-linux-product-x64\""
+  },
+  {
+    "cmd": [
+      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
+      "[CACHE]/builder/sdk/tools/bots/update_blamelists.dart",
+      "--results",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "--auth-token",
+      "extra.secret.token.should.not.be.logged"
+    ],
+    "cwd": "[CACHE]/builder/sdk",
+    "infra_step": true,
+    "name": "update blamelists for configuration \"dartk-linux-release-x64\""
+  },
+  {
+    "cmd": [
       "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
       "tools/bots/compare_results.dart",
       "--flakiness-data",
@@ -2097,7 +2216,7 @@
       "--human",
       "--verbose",
       "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "--changed",
       "--failing"
     ],
@@ -2117,7 +2236,7 @@
       "--human",
       "--verbose",
       "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "--logs",
       "{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n",
       "--logs-only",
@@ -2140,7 +2259,7 @@
       "--human",
       "--verbose",
       "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "--changed",
       "--passing"
     ],
@@ -2160,7 +2279,7 @@
       "--human",
       "--verbose",
       "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "--logs",
       "{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n",
       "--logs-only",
@@ -2182,7 +2301,7 @@
       "--human",
       "--verbose",
       "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
+      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
       "--judgement",
       "--changed",
       "--failing"
@@ -2191,9 +2310,9 @@
     "name": "test results",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@results.json@{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}@@@",
+      "@@@STEP_LOG_LINE@results.json@{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}@@@",
       "@@@STEP_LOG_END@results.json@@@",
-      "@@@STEP_LINK@Test Results@https://dart-ci.firebaseapp.com/#showLatestFailures=true&configurations=dartk-linux-product-x64@@@",
+      "@@@STEP_LINK@Test Results@https://dart-ci.firebaseapp.com/#showLatestFailures=true&configurations=dartk-linux-product-x64,dartk-linux-release-x64@@@",
       "@@@STEP_LINK@Documentation@https://goto.google.com/dart-status-file-free-workflow@@@"
     ]
   },
diff --git a/recipe_modules/dart/examples/example.expected/bisection-on-test-branch-updates-blamelist.json b/recipe_modules/dart/examples/example.expected/bisection-on-test-branch-updates-blamelist.json
deleted file mode 100644
index 501f3ac..0000000
--- a/recipe_modules/dart/examples/example.expected/bisection-on-test-branch-updates-blamelist.json
+++ /dev/null
@@ -1,2324 +0,0 @@
-[
-  {
-    "cmd": [],
-    "name": "ensure_goma"
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/goma/client",
-      "-ensure-file",
-      "infra_internal/goma/client/${platform} release",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "name": "ensure_goma.ensure_installed",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-release---------\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra_internal/goma/client/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/goma/bqupload",
-      "-ensure-file",
-      "infra/tools/bqupload/${platform} git_revision:643892f957c8e106dff793468101f2ecfc31abb7",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "name": "ensure_goma.ensure_installed (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:643\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/bqupload/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
-      "--spec-path",
-      "cache_dir = '[CACHE]/git'\nsolutions = [{'deps_file': 'DEPS', 'managed': False, 'name': 'sdk', 'url': 'https://dart.googlesource.com/sdk.git'}]",
-      "--revision_mapping_file",
-      "{}",
-      "--git-cache-dir",
-      "[CACHE]/git",
-      "--cleanup-dir",
-      "[CLEANUP]/bot_update",
-      "--output_json",
-      "/path/to/tmp/json",
-      "--revision",
-      "sdk@2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "--refs",
-      "refs/heads/ci-test-data"
-    ],
-    "cwd": "[CACHE]/builder",
-    "env": {
-      "GIT_HTTP_LOW_SPEED_LIMIT": "102400",
-      "GIT_HTTP_LOW_SPEED_TIME": "300",
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "bot_update",
-    "timeout": 1080,
-    "~followup_annotations": [
-      "@@@STEP_TEXT@Some step text@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"did_run\": true, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"sdk\": \"2d72510e447ab60a9728aeea2362d8be2cbd7789\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"manifest\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"sdk\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/sdk.git\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"2d72510e447ab60a9728aeea2362d8be2cbd7789\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"patch_failure\": false, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"patch_root\": \"sdk\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"properties\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"root\": \"sdk\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"source_manifest\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"directories\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"sdk\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/sdk.git\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"2d72510e447ab60a9728aeea2362d8be2cbd7789\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"version\": 0@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"step_text\": \"Some step text\"@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_REPO[depot_tools]/gclient.py",
-      "runhooks"
-    ],
-    "cwd": "[CACHE]/builder",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "gclient runhooks"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/task_kill.py",
-      "--kill_browsers=True",
-      "--kill_vsbuild=True"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "kill processes"
-  },
-  {
-    "cmd": [],
-    "name": "preprocess_for_goma"
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "ensure-directory",
-      "--mode",
-      "0777",
-      "[CACHE]/goma/data/dart2js_strong_linux_x64_firefox"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "preprocess_for_goma.goma cache directory",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/goma/client/goma_ctl.py",
-      "restart"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMACTL_CRASH_REPORT_ID_FILE": "[TMP_BASE]/crash_report_id",
-      "GOMA_CACHE_DIR": "[CACHE]/goma/data/dart2js_strong_linux_x64_firefox",
-      "GOMA_DIR": "[CACHE]/goma/client",
-      "GOMA_DUMP_COUNTERZ_FILE": "[TMP_BASE]/goma_counterz",
-      "GOMA_DUMP_STATS_FILE": "[TMP_BASE]/goma_stats",
-      "GOMA_ENABLE_COUNTERZ": "true",
-      "GOMA_HERMETIC": "error",
-      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "preprocess_for_goma.start_goma",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@cloudtail@https://console.cloud.google.com/logs/viewer?project=goma-logs&resource=gce_instance%2Finstance_id%2Ffakevm999-m9@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "preprocess_for_goma.goma_with_global_service_account",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_REPO[build]/scripts/tools/runit.py",
-      "--show-path",
-      "--with-third-party-lib",
-      "--",
-      "python",
-      "RECIPE_MODULE[build::goma]/resources/cloudtail_utils.py",
-      "start",
-      "--cloudtail-path",
-      "cloudtail",
-      "--pid-file",
-      "[TMP_BASE]/cloudtail.pid",
-      "--cloudtail-service-account-json",
-      "/creds/service_accounts/service-account-goma-cloudtail.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "preprocess_for_goma.start cloudtail",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/build.py",
-      "--super-fast",
-      "--no-start-goma",
-      "-j200"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "can_time_out",
-    "timeout": 3000
-  },
-  {
-    "cmd": [],
-    "name": "postprocess_for_goma"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/goma/client/goma_ctl.py",
-      "jsonstatus",
-      "[TMP_BASE]/goma_jsonstatus.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMACTL_CRASH_REPORT_ID_FILE": "[TMP_BASE]/crash_report_id",
-      "GOMA_CACHE_DIR": "[CACHE]/goma/data/dart2js_strong_linux_x64_firefox",
-      "GOMA_DIR": "[CACHE]/goma/client",
-      "GOMA_DUMP_COUNTERZ_FILE": "[TMP_BASE]/goma_counterz",
-      "GOMA_DUMP_STATS_FILE": "[TMP_BASE]/goma_stats",
-      "GOMA_ENABLE_COUNTERZ": "true",
-      "GOMA_HERMETIC": "error",
-      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "postprocess_for_goma.goma_jsonstatus",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"notice\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"infra_status\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"num_user_error\": 0, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"ping_status_code\": 200@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/goma/client/goma_ctl.py",
-      "stat"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMACTL_CRASH_REPORT_ID_FILE": "[TMP_BASE]/crash_report_id",
-      "GOMA_CACHE_DIR": "[CACHE]/goma/data/dart2js_strong_linux_x64_firefox",
-      "GOMA_DIR": "[CACHE]/goma/client",
-      "GOMA_DUMP_COUNTERZ_FILE": "[TMP_BASE]/goma_counterz",
-      "GOMA_DUMP_STATS_FILE": "[TMP_BASE]/goma_stats",
-      "GOMA_ENABLE_COUNTERZ": "true",
-      "GOMA_HERMETIC": "error",
-      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "postprocess_for_goma.goma_stat",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/goma/client/goma_ctl.py",
-      "stop"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMACTL_CRASH_REPORT_ID_FILE": "[TMP_BASE]/crash_report_id",
-      "GOMA_CACHE_DIR": "[CACHE]/goma/data/dart2js_strong_linux_x64_firefox",
-      "GOMA_DIR": "[CACHE]/goma/client",
-      "GOMA_DUMP_COUNTERZ_FILE": "[TMP_BASE]/goma_counterz",
-      "GOMA_DUMP_STATS_FILE": "[TMP_BASE]/goma_stats",
-      "GOMA_ENABLE_COUNTERZ": "true",
-      "GOMA_HERMETIC": "error",
-      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "postprocess_for_goma.stop_goma",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_REPO[build]/scripts/tools/runit.py",
-      "--show-path",
-      "--",
-      "python",
-      "RECIPE_REPO[build]/scripts/slave/upload_goma_logs.py",
-      "--upload-compiler-proxy-info",
-      "--log-url-json-file",
-      "/path/to/tmp/json",
-      "--gsutil-py-path",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "--bqupload-path",
-      "[CACHE]/goma/bqupload/bqupload",
-      "--bigquery-service-account-json",
-      "/creds/service_accounts/service-account-goma-bigquery.json",
-      "--json-status",
-      "[TMP_BASE]/goma_jsonstatus.json",
-      "--build-exit-status",
-      "0",
-      "--goma-stats-file",
-      "[TMP_BASE]/goma_stats",
-      "--goma-counterz-file",
-      "[TMP_BASE]/goma_counterz",
-      "--goma-crash-report-id-file",
-      "[TMP_BASE]/crash_report_id",
-      "--build-id",
-      "8945511751514863184",
-      "--builder-id-json",
-      "{\"bucket\": \"ci\", \"builder\": \"dart2js-strong-linux-x64-firefox\", \"project\": \"dart\"}",
-      "--is-luci",
-      "--buildbot-buildername",
-      "dart2js-strong-linux-x64-firefox",
-      "--buildbot-slavename",
-      "fake-bot-id"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "postprocess_for_goma.upload_log",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"compiler_proxy_log\": \"https://chromium-build-stats.appspot.com/compiler_proxy_log/2017/03/30/build11-m1/compiler_proxy.exe.BUILD11-M1.chrome-bot.log.INFO.20170329-222936.4420.gz\"@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LINK@compiler_proxy_log@https://chromium-build-stats.appspot.com/compiler_proxy_log/2017/03/30/build11-m1/compiler_proxy.exe.BUILD11-M1.chrome-bot.log.INFO.20170329-222936.4420.gz@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_REPO[build]/scripts/tools/runit.py",
-      "--show-path",
-      "--with-third-party-lib",
-      "--",
-      "python",
-      "RECIPE_MODULE[build::goma]/resources/cloudtail_utils.py",
-      "stop",
-      "--killed-pid-file",
-      "[TMP_BASE]/cloudtail.pid"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "GOMA_DIR": "[CACHE]/goma/client"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "postprocess_for_goma.stop cloudtail",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/task_kill.py",
-      "--kill_browsers=True",
-      "--kill_vsbuild=True"
-    ],
-    "name": "kill processes (2)"
-  },
-  {
-    "cmd": [
-      "cat",
-      ".debug.log"
-    ],
-    "name": "debug log"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "[CACHE]/builder/sdk/tools/bots/test_matrix.json",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "name": "read test-matrix.json",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"builder_configurations\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"vm-kernel-win-release-simarm_x64\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bytecode\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--gen-snapshot=${build_root}/gen_snapshot\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"gn\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/gn.py\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--arch=x64\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"runtime\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"build\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/build.py\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndartk-${system}-${mode}-${arch}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"language_2\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"co19_2/sel\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--exclude_suite=co19\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/test.py\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndartk-${system}-${mode}-${arch}\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"trigger\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"trigger\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"trigger\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo-builder\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"bar-builder\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ]@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo.dart\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"dart\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"out/ReleaseX64/dart\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndartk-${system}-${mode}-${arch}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test3\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"co19\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"co19/nnbd\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"co19_2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"co19\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 1@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"analyzer-linux-release\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"build\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/build.py\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-nunittest-asserts-${mode}-${system}\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/test.py\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndartk-${system}-${mode}-${arch}\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"trigger\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"trigger\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"trigger\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo-builder\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"bar-builder\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ]@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-nanalyzer-asserts-${system}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test3\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"dart2js-strong-mac-x64-chrome\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"dart2js-strong-linux-x64-firefox\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"dart2js-strong-win-x64-chrome\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndart2js-${system}-${runtime}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-e co19, language_2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/test.py\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--buildername\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"custom\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/custom_thing.py\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--buildername\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"custom_runner\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/custom_test_runner.py\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"testRunner\": true@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndart2js-${system}-${runtime}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"co19\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"test2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"vm-kernel-mac-release-x64\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"build\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"tools/build.py\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"foo\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--bar\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--buildername\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"custom\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"out/custom_thing\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"vm-kernel-precomp-android-release-armsimdbc64\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"meta\": {}, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"-ndartkp-android-${mode}-${arch}\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"android\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 2@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"fuzz-linux\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      ], @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"steps\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@        {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"arguments\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"runtime/tools/dartfuzz/dartfuzz_test.dart\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--isolates\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"8\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--no-show-stats\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"--time\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"2700\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          ], @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"fileset\": \"test\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"name\": \"make a fuzz\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"script\": \"out/ReleaseX64/dart\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"shards\": 3@@@",
-      "@@@STEP_LOG_LINE@json.output@        }@@@",
-      "@@@STEP_LOG_LINE@json.output@      ]@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ], @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"filesets\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"test\": \"[]\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"trigger\": \"[]\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  \"global\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"chrome\": \"66.0.3359.139\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"firefox\": \"61\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "remove",
-      "[CACHE]/builder/sdk/.debug.log"
-    ],
-    "infra_step": true,
-    "name": "delete debug log"
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "{'variables': {'files': '[]'}}",
-      "[CACHE]/builder/sdk/test"
-    ],
-    "infra_step": true,
-    "name": "write fileset test to sdk root",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@test@{'variables': {'files': '[]'}}@@@",
-      "@@@STEP_LOG_END@test@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "{'variables': {'files': '[]'}}",
-      "[CACHE]/builder/sdk/trigger"
-    ],
-    "infra_step": true,
-    "name": "write fileset trigger to sdk root",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@trigger@{'variables': {'files': '[]'}}@@@",
-      "@@@STEP_LOG_END@trigger@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_REPO[depot_tools]/gclient.py",
-      "revinfo",
-      "--output-json",
-      "/path/to/tmp/json",
-      "--filter=https://chrome-infra-packages.appspot.com/dart/third_party/co19",
-      "--filter=https://chrome-infra-packages.appspot.com/dart/third_party/co19/legacy",
-      "--filter=https://chrome-infra-packages.appspot.com/dart/dart-sdk/${platform}",
-      "--filter=https://chrome-infra-packages.appspot.com/dart/browsers/chrome/${platform}",
-      "--filter=https://chrome-infra-packages.appspot.com/dart/browsers/firefox/${platform}"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env_suffixes": {
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "gclient get package versions",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output[revinfo]@{@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  \"sdk/tests/co19/src:dart/third_party/co19\": {@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"rev\": \"git_revision:co19_hash\", @@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"url\": \"https://chrome-infra-packages.appspot.com/dart/third_party/co19\"@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  \"sdk/tests/co19_2/src:dart/third_party/co19/legacy\": {@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"rev\": \"git_revision:co19_2_hash\", @@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"url\": \"https://chrome-infra-packages.appspot.com/dart/third_party/co19/legacy\"@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  \"sdk/tools/sdks:dart/dart-sdk/${platform}\": {@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"rev\": \"version:2.9.0-18.0.dev\", @@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@    \"url\": \"https://chrome-infra-packages.appspot.com/dart/dart-sdk/${platform}\"@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@  }@@@",
-      "@@@STEP_LOG_LINE@json.output[revinfo]@}@@@",
-      "@@@STEP_LOG_END@json.output[revinfo]@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "ensure-directory",
-      "--mode",
-      "0777",
-      "[CACHE]/builder/sdk/third_party/browsers/firefox"
-    ],
-    "infra_step": true,
-    "name": "create browser cache"
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/builder/sdk/third_party/browsers/firefox",
-      "-ensure-file",
-      "dart/browsers/firefox/${platform} version:61",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "name": "ensure_installed",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-version:61------\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"dart/browsers/firefox/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/isolate",
-      "-ensure-file",
-      "infra/tools/luci/isolate/${platform} git_revision:925759d89ea75996345c21cdcc80a8c540425a6f",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "name": "ensure_installed (2)",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:925\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/luci/isolate/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/isolate/isolate",
-      "archive",
-      "-allow-missing-file-dir",
-      "-ignored-path-filter-re=(^(out|xcodebuild)[/\\\\](Release|Debug|Product)\\w*[/\\\\](clang_\\w*[/\\\\])?(generated_tests|obj)[/\\\\])|(^tools[/\\\\]sdks)",
-      "-isolate=[CACHE]/builder/sdk/test",
-      "-isolated=[CACHE]/builder/sdk/test.isolated",
-      "-isolate-server=https://example.isolateserver.appspot.com"
-    ],
-    "infra_step": true,
-    "name": "upload testing fileset test",
-    "~followup_annotations": [
-      "@@@STEP_TEXT@fileset hash: test_hash@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "trigger shards for test1"
-  },
-  {
-    "cmd": [],
-    "name": "trigger shards for test1.install infra/tools/luci/swarming",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "ensure-directory",
-      "--mode",
-      "0777",
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "trigger shards for test1.install infra/tools/luci/swarming.ensure package directory",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@2@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin",
-      "-ensure-file",
-      "infra/tools/luci/swarming/${platform} swarming_module_pin",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "trigger shards for test1.install infra/tools/luci/swarming.ensure_installed",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@2@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-swarming_module_\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/luci/swarming/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin/swarming",
-      "spawn-tasks",
-      "-server",
-      "https://example.swarmingserver.appspot.com",
-      "-json-input",
-      "{\"requests\": [{\"name\": \"test1_shard_1\", \"priority\": \"25\", \"service_account\": \"\", \"task_slices\": [{\"expiration_secs\": \"3600\", \"properties\": {\"caches\": [{\"name\": \"vpython\", \"path\": \"cache/vpython\"}], \"cipd_input\": {\"packages\": [{\"package_name\": \"infra/tools/luci/vpython/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/tools/luci/vpython-native/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/3pp/tools/cpython/${platform}\", \"path\": \"cipd_bin_packages/cpython\", \"version\": \"version:2.7.17.chromium.24\"}, {\"package_name\": \"infra/3pp/tools/cpython3/${platform}\", \"path\": \"cipd_bin_packages/cpython3\", \"version\": \"version:3.8.1rc1.chromium.10\"}, {\"package_name\": \"dart/browsers/firefox/${platform}\", \"path\": \"third_party/browsers/firefox\", \"version\": \"version:61\"}, {\"package_name\": \"dart/dart-sdk/${platform}\", \"path\": \"tools/sdks\", \"version\": \"version:2.9.0-18.0.dev\"}]}, \"command\": [\"/usr/bin/xvfb-run\", \"-a\", \"--server-args=-screen 0 1024x768x24\", \"python\", \"-u\", \"tools/test.py\", \"--progress=status\", \"--report\", \"--time\", \"--silent-failures\", \"--write-results\", \"--write-logs\", \"--clean-exit\", \"-ndart2js-linux-firefox\", \"foo\", \"--bar\", \"-e co19, language_2\", \"--copy-coredumps\", \"--firefox=third_party/browsers/firefox/firefox/firefox\", \"--shards=2\", \"--shard=1\", \"--output-directory=${ISOLATED_OUTDIR}\"], \"containment\": {\"containment_type\": \"AUTO\", \"limit_processes\": \"0\", \"limit_total_committed_memory\": \"0\", \"lower_priority\": false}, \"dimensions\": [{\"key\": \"cpu\", \"value\": \"x86-64\"}, {\"key\": \"os\", \"value\": \"Linux\"}, {\"key\": \"pool\", \"value\": \"dart.tests\"}], \"env\": [{\"key\": \"VPYTHON_VIRTUALENV_ROOT\", \"value\": \"cache/vpython\"}], \"env_prefixes\": [{\"key\": \"PATH\", \"value\": [\"cipd_bin_packages\", \"cipd_bin_packages/bin\", \"cipd_bin_packages/cpython\", \"cipd_bin_packages/cpython/bin\", \"cipd_bin_packages/cpython3\", \"cipd_bin_packages/cpython3/bin\"]}], \"execution_timeout_secs\": \"600\", \"grace_period_secs\": \"30\", \"idempotent\": false, \"inputs_ref\": {\"isolated\": \"test_hash\", \"isolatedserver\": \"https://example.isolateserver.appspot.com\", \"namespace\": \"default-gzip\"}, \"io_timeout_secs\": \"1200\", \"outputs\": [], \"relative_cwd\": \"\"}}]}, {\"name\": \"test1_shard_2\", \"priority\": \"25\", \"service_account\": \"\", \"task_slices\": [{\"expiration_secs\": \"3600\", \"properties\": {\"caches\": [{\"name\": \"vpython\", \"path\": \"cache/vpython\"}], \"cipd_input\": {\"packages\": [{\"package_name\": \"infra/tools/luci/vpython/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/tools/luci/vpython-native/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/3pp/tools/cpython/${platform}\", \"path\": \"cipd_bin_packages/cpython\", \"version\": \"version:2.7.17.chromium.24\"}, {\"package_name\": \"infra/3pp/tools/cpython3/${platform}\", \"path\": \"cipd_bin_packages/cpython3\", \"version\": \"version:3.8.1rc1.chromium.10\"}, {\"package_name\": \"dart/browsers/firefox/${platform}\", \"path\": \"third_party/browsers/firefox\", \"version\": \"version:61\"}, {\"package_name\": \"dart/dart-sdk/${platform}\", \"path\": \"tools/sdks\", \"version\": \"version:2.9.0-18.0.dev\"}]}, \"command\": [\"/usr/bin/xvfb-run\", \"-a\", \"--server-args=-screen 0 1024x768x24\", \"python\", \"-u\", \"tools/test.py\", \"--progress=status\", \"--report\", \"--time\", \"--silent-failures\", \"--write-results\", \"--write-logs\", \"--clean-exit\", \"-ndart2js-linux-firefox\", \"foo\", \"--bar\", \"-e co19, language_2\", \"--copy-coredumps\", \"--firefox=third_party/browsers/firefox/firefox/firefox\", \"--shards=2\", \"--shard=2\", \"--output-directory=${ISOLATED_OUTDIR}\"], \"containment\": {\"containment_type\": \"AUTO\", \"limit_processes\": \"0\", \"limit_total_committed_memory\": \"0\", \"lower_priority\": false}, \"dimensions\": [{\"key\": \"cpu\", \"value\": \"x86-64\"}, {\"key\": \"os\", \"value\": \"Linux\"}, {\"key\": \"pool\", \"value\": \"dart.tests\"}], \"env\": [{\"key\": \"VPYTHON_VIRTUALENV_ROOT\", \"value\": \"cache/vpython\"}], \"env_prefixes\": [{\"key\": \"PATH\", \"value\": [\"cipd_bin_packages\", \"cipd_bin_packages/bin\", \"cipd_bin_packages/cpython\", \"cipd_bin_packages/cpython/bin\", \"cipd_bin_packages/cpython3\", \"cipd_bin_packages/cpython3/bin\"]}], \"execution_timeout_secs\": \"600\", \"grace_period_secs\": \"30\", \"idempotent\": false, \"inputs_ref\": {\"isolated\": \"test_hash\", \"isolatedserver\": \"https://example.isolateserver.appspot.com\", \"namespace\": \"default-gzip\"}, \"io_timeout_secs\": \"1200\", \"outputs\": [], \"relative_cwd\": \"\"}}]}]}",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "trigger shards for test1.trigger shards for test1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"tasks\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"request\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"name\": \"test1_shard_1\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"0\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }, @@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"request\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"name\": \"test1_shard_2\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"1\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LINK@task UI: test1_shard_1@https://example.swarmingserver.appspot.com/task?id=0@@@",
-      "@@@STEP_LINK@task UI: test1_shard_2@https://example.swarmingserver.appspot.com/task?id=1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "/usr/bin/xvfb-run",
-      "-a",
-      "--server-args=-screen 0 1024x768x24",
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/custom_thing.py",
-      "foo",
-      "--bar",
-      "--buildername"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "name": "custom"
-  },
-  {
-    "cmd": [
-      "/usr/bin/xvfb-run",
-      "-a",
-      "--server-args=-screen 0 1024x768x24",
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/custom_test_runner.py",
-      "foo",
-      "--bar",
-      "--buildername",
-      "--output-directory",
-      "[CLEANUP]/tmp_tmp_1"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "custom_runner"
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_1/logs.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "read logs.json for custom_runner",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@logs.json@{\"test\":\"test1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_1/results.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "read results.json for custom_runner",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test1\", \"configuration\": example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test2\", \"configuration\": example_configuration_2\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "/usr/bin/xvfb-run",
-      "-a",
-      "--server-args=-screen 0 1024x768x24",
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/test.py",
-      "--progress=status",
-      "--report",
-      "--time",
-      "--silent-failures",
-      "--write-results",
-      "--write-logs",
-      "--clean-exit",
-      "-ndart2js-linux-firefox",
-      "foo",
-      "--bar",
-      "co19",
-      "--copy-coredumps",
-      "--firefox=third_party/browsers/firefox/firefox/firefox",
-      "--output-directory",
-      "[CLEANUP]/tmp_tmp_2"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "test2"
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_2/logs.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "read logs.json for test2",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@logs.json@{\"test\":\"test1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_2/results.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "read results.json for test2",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test1\", \"configuration\": example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test2\", \"configuration\": example_configuration_2\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin/swarming",
-      "collect",
-      "-server",
-      "https://example.swarmingserver.appspot.com",
-      "-task-summary-json",
-      "/path/to/tmp/json",
-      "-task-output-stdout",
-      "json",
-      "-output-dir",
-      "[CLEANUP]/tmp_tmp_3",
-      "0"
-    ],
-    "infra_step": true,
-    "name": "test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"0\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"output\": \"hello world!\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"outputs\": [], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"results\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"bot_id\": \"vm-123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"duration\": 62.35, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"exit_code\": 0, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"name\": \"test1_shard_1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"outputs_ref\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolated\": \"abc123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolatedserver\": \"https://isolateserver.appspot.com\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"namespace\": \"default-gzip\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"state\": \"COMPLETED\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"0\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@task stdout+stderr: test1_shard_1@hello world!@@@",
-      "@@@STEP_LOG_END@task stdout+stderr: test1_shard_1@@@",
-      "@@@STEP_LINK@task isolated outputs: test1_shard_1@https://isolateserver.appspot.com/browse?namespace=default-gzip&hash=abc123@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_3/0/logs.json",
-      "/path/to/tmp/"
-    ],
-    "infra_step": true,
-    "name": "read logs.json for test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@logs.json@{\"test\":\"test1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_3/0/results.json",
-      "/path/to/tmp/"
-    ],
-    "infra_step": true,
-    "name": "read results.json for test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test1\", \"configuration\": example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test2\", \"configuration\": example_configuration_2\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin/swarming",
-      "collect",
-      "-server",
-      "https://example.swarmingserver.appspot.com",
-      "-task-summary-json",
-      "/path/to/tmp/json",
-      "-task-output-stdout",
-      "json",
-      "-output-dir",
-      "[CLEANUP]/tmp_tmp_4",
-      "1"
-    ],
-    "infra_step": true,
-    "name": "test1_shard_2",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"1\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"output\": \"hello world!\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"outputs\": [], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"results\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"bot_id\": \"vm-123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"duration\": 62.35, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"exit_code\": 0, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"name\": \"test1_shard_2\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"outputs_ref\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolated\": \"abc123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolatedserver\": \"https://isolateserver.appspot.com\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"namespace\": \"default-gzip\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"state\": \"COMPLETED\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"1\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@task stdout+stderr: test1_shard_2@hello world!@@@",
-      "@@@STEP_LOG_END@task stdout+stderr: test1_shard_2@@@",
-      "@@@STEP_LINK@task isolated outputs: test1_shard_2@https://isolateserver.appspot.com/browse?namespace=default-gzip&hash=abc123@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_4/1/logs.json",
-      "/path/to/tmp/"
-    ],
-    "infra_step": true,
-    "name": "read logs.json for test1_shard_2",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@logs.json@{\"test\":\"test1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_4/1/results.json",
-      "/path/to/tmp/"
-    ],
-    "infra_step": true,
-    "name": "read results.json for test1_shard_2",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test1\", \"configuration\": example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"test2\", \"configuration\": example_configuration_2\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "download previous results"
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "ensure-directory",
-      "--mode",
-      "0777",
-      "[CACHE]/builder/sdk/LATEST"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "download previous results.ensure LATEST dir",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "",
-      "[CACHE]/builder/sdk/LATEST/results.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "download previous results.ensure results.json exists",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "",
-      "[CACHE]/builder/sdk/LATEST/flaky.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "download previous results.ensure flaky.json exists",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_END@flaky.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/4711/*.json",
-      "[CACHE]/builder/sdk/LATEST"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "download previous results.gsutil download previous results",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "deflaking"
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "LATEST/flaky.json",
-      "--changed",
-      "--passing",
-      "--failing",
-      "--count",
-      "50",
-      "LATEST/results.json",
-      "{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "deflaking.list tests to deflake (test1)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@raw_io.output_text@Flaky/Test/1@@@",
-      "@@@STEP_LOG_LINE@raw_io.output_text@Flaky/Test/2@@@",
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "deflaking.trigger shards for test1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin/swarming",
-      "spawn-tasks",
-      "-server",
-      "https://example.swarmingserver.appspot.com",
-      "-json-input",
-      "{\"requests\": [{\"name\": \"test1_shard_1\", \"priority\": \"25\", \"service_account\": \"\", \"tags\": [\"optional:true\"], \"task_slices\": [{\"expiration_secs\": \"3600\", \"properties\": {\"caches\": [{\"name\": \"vpython\", \"path\": \"cache/vpython\"}], \"cipd_input\": {\"packages\": [{\"package_name\": \"infra/tools/luci/vpython/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/tools/luci/vpython-native/${platform}\", \"path\": \"cipd_bin_packages\", \"version\": \"git_revision:b01b3ede35a24f76f21420f11d13f234848e5d34\"}, {\"package_name\": \"infra/3pp/tools/cpython/${platform}\", \"path\": \"cipd_bin_packages/cpython\", \"version\": \"version:2.7.17.chromium.24\"}, {\"package_name\": \"infra/3pp/tools/cpython3/${platform}\", \"path\": \"cipd_bin_packages/cpython3\", \"version\": \"version:3.8.1rc1.chromium.10\"}, {\"package_name\": \"dart/browsers/firefox/${platform}\", \"path\": \"third_party/browsers/firefox\", \"version\": \"version:61\"}, {\"package_name\": \"dart/dart-sdk/${platform}\", \"path\": \"tools/sdks\", \"version\": \"version:2.9.0-18.0.dev\"}]}, \"command\": [\"/usr/bin/xvfb-run\", \"-a\", \"--server-args=-screen 0 1024x768x24\", \"python\", \"-u\", \"tools/test.py\", \"--progress=status\", \"--report\", \"--time\", \"--silent-failures\", \"--write-results\", \"--write-logs\", \"--clean-exit\", \"-ndart2js-linux-firefox\", \"foo\", \"--bar\", \"-e co19, language_2\", \"--repeat=5\", \"--tests\", \"Flaky/Test/1\\nFlaky/Test/2\", \"--copy-coredumps\", \"--firefox=third_party/browsers/firefox/firefox/firefox\", \"--shards=1\", \"--shard=1\", \"--output-directory=${ISOLATED_OUTDIR}\"], \"containment\": {\"containment_type\": \"AUTO\", \"limit_processes\": \"0\", \"limit_total_committed_memory\": \"0\", \"lower_priority\": false}, \"dimensions\": [{\"key\": \"cpu\", \"value\": \"x86-64\"}, {\"key\": \"os\", \"value\": \"Linux\"}, {\"key\": \"pool\", \"value\": \"dart.tests\"}], \"env\": [{\"key\": \"VPYTHON_VIRTUALENV_ROOT\", \"value\": \"cache/vpython\"}], \"env_prefixes\": [{\"key\": \"PATH\", \"value\": [\"cipd_bin_packages\", \"cipd_bin_packages/bin\", \"cipd_bin_packages/cpython\", \"cipd_bin_packages/cpython/bin\", \"cipd_bin_packages/cpython3\", \"cipd_bin_packages/cpython3/bin\"]}], \"execution_timeout_secs\": \"600\", \"grace_period_secs\": \"30\", \"idempotent\": false, \"inputs_ref\": {\"isolated\": \"test_hash\", \"isolatedserver\": \"https://example.isolateserver.appspot.com\", \"namespace\": \"default-gzip\"}, \"io_timeout_secs\": \"1200\", \"outputs\": [], \"relative_cwd\": \"\"}}]}]}",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "deflaking.trigger shards for test1.trigger shards for test1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@2@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"tasks\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"request\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"name\": \"test1_shard_1\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"0\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LINK@task UI: test1_shard_1@https://example.swarmingserver.appspot.com/task?id=0@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "LATEST/flaky.json",
-      "--changed",
-      "--passing",
-      "--failing",
-      "--count",
-      "50",
-      "LATEST/results.json",
-      "{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"None\"}\n"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "deflaking.list tests to deflake (test2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@raw_io.output_text@Flaky/Test/1@@@",
-      "@@@STEP_LOG_LINE@raw_io.output_text@Flaky/Test/2@@@",
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "/usr/bin/xvfb-run",
-      "-a",
-      "--server-args=-screen 0 1024x768x24",
-      "python",
-      "-u",
-      "[CACHE]/builder/sdk/tools/test.py",
-      "--progress=status",
-      "--report",
-      "--time",
-      "--silent-failures",
-      "--write-results",
-      "--write-logs",
-      "--clean-exit",
-      "-ndart2js-linux-firefox",
-      "foo",
-      "--bar",
-      "co19",
-      "--repeat=5",
-      "--tests",
-      "Flaky/Test/1\nFlaky/Test/2",
-      "--copy-coredumps",
-      "--firefox=third_party/browsers/firefox/firefox/firefox",
-      "--output-directory",
-      "[CLEANUP]/tmp_tmp_5"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "deflaking.test2",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_5/logs.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "deflaking.read logs.json for test2",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@logs.json@{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@logs.json@{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_5/results.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "env": {
-      "BUILDBOT_BUILDERNAME": "dart2js-strong-linux-x64-firefox-infra"
-    },
-    "env_suffixes": {
-      "DEPOT_TOOLS_UPDATE": [
-        "0"
-      ],
-      "PATH": [
-        "RECIPE_REPO[depot_tools]"
-      ]
-    },
-    "infra_step": true,
-    "name": "deflaking.read results.json for test2",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/cipd/infra/tools/luci/swarming/swarming_module_pin/swarming",
-      "collect",
-      "-server",
-      "https://example.swarmingserver.appspot.com",
-      "-task-summary-json",
-      "/path/to/tmp/json",
-      "-task-output-stdout",
-      "json",
-      "-output-dir",
-      "[CLEANUP]/tmp_tmp_6",
-      "0"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "deflaking.test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"0\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"output\": \"hello world!\", @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"outputs\": [], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"results\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"bot_id\": \"vm-123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"duration\": 62.35, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"exit_code\": 0, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"name\": \"test1_shard_1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"outputs_ref\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolated\": \"abc123\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"isolatedserver\": \"https://isolateserver.appspot.com\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"namespace\": \"default-gzip\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"state\": \"COMPLETED\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"task_id\": \"0\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@task stdout+stderr: test1_shard_1@hello world!@@@",
-      "@@@STEP_LOG_END@task stdout+stderr: test1_shard_1@@@",
-      "@@@STEP_LINK@task isolated outputs: test1_shard_1@https://isolateserver.appspot.com/browse?namespace=default-gzip&hash=abc123@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_6/0/logs.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "deflaking.read logs.json for test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@logs.json@{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@logs.json@{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[CLEANUP]/tmp_tmp_6/0/results.json",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "deflaking.read results.json for test1_shard_1",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\"}@@@",
-      "@@@STEP_LOG_END@results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/update_flakiness.dart",
-      "-i",
-      "LATEST/flaky.json",
-      "-o",
-      "/path/to/tmp/",
-      "--build-id",
-      "8945511751514863184",
-      "--commit",
-      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"None\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"None\"}\n{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\",\"bot_name\":\"None\"}\n"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "update flakiness information",
-    "~followup_annotations": [
-      "@@@STEP_LOG_END@raw_io.output_text[flaky.json]@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "show",
-      "HEAD",
-      "--format=%at",
-      "-s"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "git show"
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "[CACHE]/builder/sdk/tools/bots/extend_results.dart",
-      "{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"vm-123\"}\n{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\",\"bot_name\":\"vm-123\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"None\"}\n{\"name\":\"test1\", \"configuration\": example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"test2\", \"configuration\": example_configuration_2\",\"bot_name\":\"None\"}\n{\"name\":\"Flaky/Test/1\", \"configuration\": \"example_configuration\",\"bot_name\":\"None\"}\n{\"name\":\"Flaky/Test/2\", \"configuration\": \"example_configuration\",\"bot_name\":\"None\"}\n",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "",
-      "[CACHE]/builder/sdk/LATEST/flaky.json",
-      "dart2js-strong-linux-x64-firefox",
-      "1357",
-      "1234567",
-      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "/path/to/tmp/"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "add fields to result records"
-  },
-  {
-    "cmd": [],
-    "name": "upload new results"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/revision"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload revision",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/revision@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n",
-      "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/logs.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload logs.json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/results.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload results.json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/flaky.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload flaky.json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/builders/dart2js-strong-linux-x64-firefox/1357/flaky.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/builders/current_flakiness/single_directory/flaky_current_dart2js-strong-linux-x64-firefox.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload flaky_current_dart2js-strong-linux-x64-firefox.json",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/builders/current_flakiness/single_directory/flaky_current_dart2js-strong-linux-x64-firefox.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "gs://dart-test-results/configuration/master/dartk-linux-product-x64/1357/revision"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload revision (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-product-x64/1357/revision@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/configuration/master/dartk-linux-product-x64/1357/logs.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload logs.json (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-product-x64/1357/logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "gs://dart-test-results/configuration/master/dartk-linux-product-x64/1357/results.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload results.json (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-product-x64/1357/results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/configuration/master/dartk-linux-product-x64/1357/flaky.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload flaky.json (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-product-x64/1357/flaky.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "2d72510e447ab60a9728aeea2362d8be2cbd7789",
-      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/revision"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload revision (3)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/revision@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/logs.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload logs.json (3)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/logs.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/results.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload results.json (3)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/results.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_MODULE[depot_tools::gsutil]/resources/gsutil_smart_retry.py",
-      "--",
-      "RECIPE_REPO[depot_tools]/gsutil.py",
-      "----",
-      "cp",
-      "",
-      "gs://dart-test-results/configuration/master/dartk-linux-release-x64/1357/flaky.json"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "upload new results.gsutil upload flaky.json (3)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@gsutil.upload@https://storage.cloud.google.com/dart-test-results/configuration/master/dartk-linux-release-x64/1357/flaky.json@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "luci-auth",
-      "token",
-      "-scopes",
-      "https://www.googleapis.com/auth/cloud-platform",
-      "-lifetime",
-      "3m"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "get access token for default account"
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "[CACHE]/builder/sdk/tools/bots/update_blamelists.dart",
-      "--results",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--auth-token",
-      "extra.secret.token.should.not.be.logged",
-      "-s"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "update blamelists for configuration \"dartk-linux-product-x64\""
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "[CACHE]/builder/sdk/tools/bots/update_blamelists.dart",
-      "--results",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--auth-token",
-      "extra.secret.token.should.not.be.logged",
-      "-s"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "update blamelists for configuration \"dartk-linux-release-x64\""
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "",
-      "--human",
-      "--verbose",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--changed",
-      "--failing"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "find new test failures",
-    "~followup_annotations": [
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "",
-      "--human",
-      "--verbose",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--logs",
-      "{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n",
-      "--logs-only",
-      "--changed",
-      "--failing"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "find new test failures (logs)",
-    "~followup_annotations": [
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "",
-      "--human",
-      "--verbose",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--changed",
-      "--passing"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "find tests that began passing",
-    "~followup_annotations": [
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "",
-      "--human",
-      "--verbose",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--logs",
-      "{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"test\":\"test1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/1\", \"configuration\": \"example_configuration\"}\n{\"name\": \"Flaky/Test/2\", \"configuration\": \"example_configuration\"}\n",
-      "--logs-only",
-      "--flaky"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "infra_step": true,
-    "name": "find ignored flaky test failure logs",
-    "~followup_annotations": [
-      "@@@STEP_LOG_END@raw_io.output_text@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "[CACHE]/builder/sdk/tools/sdks/dart-sdk/bin/dart",
-      "tools/bots/compare_results.dart",
-      "--flakiness-data",
-      "",
-      "--human",
-      "--verbose",
-      "[CACHE]/builder/sdk/LATEST/results.json",
-      "{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}\n",
-      "--judgement",
-      "--changed",
-      "--failing"
-    ],
-    "cwd": "[CACHE]/builder/sdk",
-    "name": "test results",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t01\",\"configuration\":\"dartk-linux-product-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t01\",\"time_ms\":451,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}@@@",
-      "@@@STEP_LOG_LINE@results.json@{\"name\":\"co19_2/Language/Classes/Abstract_Instance_Members/inherited_t02\",\"configuration\":\"dartk-linux-release-x64\",\"suite\":\"co19_2\",\"test_name\":\"Language/Classes/Abstract_Instance_Members/inherited_t02\",\"time_ms\":496,\"result\":\"CompileTimeError\",\"expected\":\"CompileTimeError\",\"matches\":true,\"commit_time\":1551185312,\"commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"build_number\":\"2404\",\"builder_name\":\"vm-kernel-linux-product-x64\",\"bot_name\":\"trusty-dart-68765ebb-us-central1-b-2ls0\",\"flaky\":false,\"previous_flaky\":false,\"previous_result\":\"CompileTimeError\",\"previous_commit_hash\":\"f0042a32250a8a6193e6d07e2b6508b13f43c864\",\"previous_commit_time\":1551185312,\"previous_build_number\":2403,\"changed\":false}@@@",
-      "@@@STEP_LOG_END@results.json@@@",
-      "@@@STEP_LINK@Test Results@https://dart-ci.firebaseapp.com/#showLatestFailures=true&configurations=dartk-linux-product-x64,dartk-linux-release-x64@@@",
-      "@@@STEP_LINK@Documentation@https://goto.google.com/dart-status-file-free-workflow@@@"
-    ]
-  },
-  {
-    "name": "$result"
-  }
-]
\ No newline at end of file
diff --git a/recipe_modules/dart/examples/example.py b/recipe_modules/dart/examples/example.py
index ade0860..c13f1d0 100644
--- a/recipe_modules/dart/examples/example.py
+++ b/recipe_modules/dart/examples/example.py
@@ -388,6 +388,10 @@
 
 
 def GenTests(api):
+  UPDATE_BLAMELIST_STEP_RE = ".*blamelist.*"
+  UPDATE_BLAMELIST_STEP = ('update blamelists for configuration '
+                           '"dartk-linux-product-x64"')
+
   yield api.test(
       'basic',
       api.properties(
@@ -407,7 +411,7 @@
                     api.raw_io.output_text('123', name='latest')),
       api.step_data('add fields to result records',
                     api.raw_io.output_text(RESULT_DATA)),
-      api.post_process(DoesNotRun, "update blamelists"),
+      api.post_process(DoesNotRunRE, UPDATE_BLAMELIST_STEP_RE),
       api.post_process(StatusSuccess),
   )
 
@@ -489,12 +493,14 @@
       _canned_step(api, 'custom_runner', deflake=False),
       api.step_data(
           'upload testing fileset test', stdout=api.raw_io.output('test_hash')),
-      api.step_data('add fields to result records',
-                    api.raw_io.output_text(RESULT_DATA)),
+      api.step_data(
+          'add fields to result records',
+          api.raw_io.output_text(RESULT_DATA_MULTIPLE_CONFIGURATIONS)),
       api.post_process(DoesNotRunRE, '.*find latest build'),
       api.post_process(DoesNotRunRE, '.*publish results to pub/sub'),
       api.post_process(StepCommandContains, 'test results',
                        ['tools/bots/compare_results.dart']),
+      api.post_process(MustRun, UPDATE_BLAMELIST_STEP),
       api.post_process(StatusSuccess),
   )
 
@@ -520,10 +526,37 @@
       api.post_process(DoesNotRunRE, '.*publish results to pub/sub'),
       api.post_process(StepCommandContains, 'test results',
                        ['tools/bots/compare_results.dart']),
-      api.post_process(
-          MustRun, 'update blamelists for configuration '
-          '"dartk-linux-product-x64"'),
+      # Verify that the test branch builder updates the staging database
+      api.post_process(StepCommandContains, UPDATE_BLAMELIST_STEP, ['-s']),
       api.post_process(StatusSuccess),
+      api.post_process(DropExpectation),
+  )
+
+  yield api.test(
+      'experimental-bisection-build-does-not-update-blamelist',
+      api.properties(
+          shard_timeout='600', bisect_reason="FAILURE", bisect_base_build=4711),
+      api.buildbucket.ci_build(
+          build_number=1357,
+          builder='dart2js-strong-linux-x64-firefox',
+          git_repo='https://dart.googlesource.com/sdk',
+          project='dart'),
+      api.runtime(is_luci=True, is_experimental=True),
+      _canned_step(api, 'test1', 2, False),
+      _canned_step(api, 'test2'),
+      _canned_step(api, 'custom_runner', deflake=False),
+      api.step_data(
+          'upload testing fileset test', stdout=api.raw_io.output('test_hash')),
+      api.step_data(
+          'add fields to result records',
+          api.raw_io.output_text(RESULT_DATA_MULTIPLE_CONFIGURATIONS)),
+      api.post_process(DoesNotRunRE, '.*find latest build'),
+      api.post_process(DoesNotRunRE, '.*publish results to pub/sub'),
+      api.post_process(StepCommandContains, 'test results',
+                       ['tools/bots/compare_results.dart']),
+      api.post_process(DoesNotRunRE, UPDATE_BLAMELIST_STEP_RE),
+      api.post_process(StatusSuccess),
+      api.post_process(DropExpectation),
   )
 
   yield api.test(
diff --git a/recipes/dart/neo.expected/failing-build-starts-bisection.json b/recipes/dart/neo.expected/failing-build-starts-bisection.json
index a7d16e3..02d573a 100644
--- a/recipes/dart/neo.expected/failing-build-starts-bisection.json
+++ b/recipes/dart/neo.expected/failing-build-starts-bisection.json
@@ -1839,7 +1839,7 @@
     ],
     "infra_step": true,
     "name": "schedule bisect (f4d35da881f8fd329a4d3e01dd78b66a502d5c49)",
-    "stdin": "{\"requests\": [{\"scheduleBuild\": {\"builder\": {\"bucket\": \"ci\", \"builder\": \"dart2js-win-debug-x64-firefox\", \"project\": \"dart\"}, \"experimental\": \"YES\", \"fields\": \"builder,createTime,createdBy,critical,endTime,id,input,number,output,startTime,status,updateTime\", \"gitilesCommit\": {\"host\": \"dart.googlesource.com\", \"id\": \"f4d35da881f8fd329a4d3e01dd78b66a502d5c49\", \"project\": \"sdk\", \"ref\": \"refs/heads/master\"}, \"priority\": 30, \"properties\": {\"bisect_base_build\": 4711, \"bisect_newer\": [\"8331c527346abecfe0ad081df241512bb4b7df50\"], \"bisect_older\": [], \"bisect_reason\": \"FAILURE\", \"bisection_enabled\": true}, \"requestId\": \"8945511751514863184-00000000-0000-0000-0000-000000001337\", \"tags\": [{\"key\": \"user_agent\", \"value\": \"recipe\"}]}}]}",
+    "stdin": "{\"requests\": [{\"scheduleBuild\": {\"builder\": {\"bucket\": \"ci\", \"builder\": \"dart2js-win-debug-x64-firefox\", \"project\": \"dart\"}, \"experimental\": \"NO\", \"fields\": \"builder,createTime,createdBy,critical,endTime,id,input,number,output,startTime,status,updateTime\", \"gitilesCommit\": {\"host\": \"dart.googlesource.com\", \"id\": \"f4d35da881f8fd329a4d3e01dd78b66a502d5c49\", \"project\": \"sdk\", \"ref\": \"refs/heads/master\"}, \"priority\": 30, \"properties\": {\"bisect_base_build\": 4711, \"bisect_newer\": [\"8331c527346abecfe0ad081df241512bb4b7df50\"], \"bisect_older\": [], \"bisect_reason\": \"FAILURE\", \"bisection_enabled\": true}, \"requestId\": \"8945511751514863184-00000000-0000-0000-0000-000000001337\", \"tags\": [{\"key\": \"user_agent\", \"value\": \"recipe\"}]}}]}",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"responses\": [@@@",
@@ -1865,7 +1865,7 @@
       "@@@STEP_LOG_LINE@request@          \"builder\": \"dart2js-win-debug-x64-firefox\", @@@",
       "@@@STEP_LOG_LINE@request@          \"project\": \"dart\"@@@",
       "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"experimental\": \"YES\", @@@",
+      "@@@STEP_LOG_LINE@request@        \"experimental\": \"NO\", @@@",
       "@@@STEP_LOG_LINE@request@        \"fields\": \"builder,createTime,createdBy,critical,endTime,id,input,number,output,startTime,status,updateTime\", @@@",
       "@@@STEP_LOG_LINE@request@        \"gitilesCommit\": {@@@",
       "@@@STEP_LOG_LINE@request@          \"host\": \"dart.googlesource.com\", @@@",
diff --git a/recipes/dart/neo.py b/recipes/dart/neo.py
index 4cc5676..4e0958c 100644
--- a/recipes/dart/neo.py
+++ b/recipes/dart/neo.py
@@ -78,8 +78,7 @@
     # TODO(karlklose): distinguish between test failures and build failures (and
     #                  start additional bisection runs for different failures).
     reason = "FAILURE" if failure else api.bisect_build.REASON_SUCCESS
-    api.bisect_build.schedule(
-        "https://dart.googlesource.com/sdk", reason, is_experimental=True)
+    api.bisect_build.schedule("https://dart.googlesource.com/sdk", reason)
 
 
 def RunSteps(api, properties):