Fix type error in pub_uploader_test.
diff --git a/test/pub_uploader_test.dart b/test/pub_uploader_test.dart
index af6e16c..2ad237f 100644
--- a/test/pub_uploader_test.dart
+++ b/test/pub_uploader_test.dart
@@ -31,8 +31,8 @@
 ScheduledProcess startPubUploader(ScheduledServer server, List<String> args) {
   var tokenEndpoint = server.url.then((url) =>
       url.resolve('/token').toString());
-  args = <Object>['uploader', '--server', tokenEndpoint]..addAll(args);
-  return startPub(args: args, tokenEndpoint: tokenEndpoint);
+  var allArgs = <Object>['uploader', '--server', tokenEndpoint]..addAll(args);
+  return startPub(args: allArgs, tokenEndpoint: tokenEndpoint);
 }
 
 main() {