Use parallelism on travis and reorder bots (#1802)

diff --git a/.travis.yml b/.travis.yml
index 28ddaab..d8c41e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,14 @@
 language: dart
 sudo: false
 dart:
-  - "dev/raw/latest"
   - stable
+  - "dev/raw/latest"
 env:
-  - DARTDOC_BOT=main
-  - DARTDOC_BOT=packages
   - DARTDOC_BOT=flutter
-  - DARTDOC_BOT=sdk-docs
   - DARTDOC_BOT=sdk-analyzer
+  - DARTDOC_BOT=main
+  - DARTDOC_BOT=sdk-docs
+  - DARTDOC_BOT=packages
 script: ./tool/travis.sh
 
 os:
diff --git a/tool/grind.dart b/tool/grind.dart
index 91f5505..fd71b89 100644
--- a/tool/grind.dart
+++ b/tool/grind.dart
@@ -40,7 +40,7 @@
 /// Run no more than the number of processors available in parallel.
 final MultiFutureTracker testFutures = new MultiFutureTracker(
     Platform.environment.containsKey('TRAVIS')
-        ? 1
+        ? 2
         : Platform.numberOfProcessors);
 
 // Directory.systemTemp is not a constant.  So wrap it.