Web expression_evaluation_web_test failing on non-web HHH bot #69711
Description
We're seeing these sorts of failures on the Flutter HHH bot:
23:47 +98 ~18 -13: test/integration.shard/expression_evaluation_web_test.dart: flutter test expression evaluation - can evaluate trivial expressions in a test [E]
Exception: Received app.stop event while waiting for app.started event
the Dart compiler exited unexpectedly.
#0 throwToolExit (package:flutter_tools/src/base/common.dart:10:3)
#1 DefaultResidentCompiler._compile.<anonymous closure> (package:flutter_tools/src/compile.dart:709:13)
#2 _rootRun (dart:async/zone.dart:1182:47)
#3 _CustomZone.run (dart:async/zone.dart:1093:19)
#4 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
#5 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:410:13)
#6 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:420:15)
#7 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:305:7)
#8 _SinkTransformerStreamSubscription._close (dart:async/stream_transformers.dart:97:11)
#9 _EventSinkWrapper.close (dart:async/stream_transformers.dart:23:11)
#10 _StringAdapterSink.close (dart:convert/string_conversion.dart:251:11)
#11 _LineSplitterSink.close (dart:convert/line_splitter.dart:139:11)
#12 _SinkTransformerStreamSubscription._handleDone (dart:async/stream_transformers.dart:142:24)
#13 _rootRun (dart:async/zone.dart:1182:47)
#14 _CustomZone.run (dart:async/zone.dart:1093:19)
#15 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
#16 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:410:13)
#17 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:420:15)
#18 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:305:7)
#19 _SinkTransformerStreamSubscription._close (dart:async/stream_transformers.dart:97:11)
#20 _EventSinkWrapper.close (dart:async/stream_transformers.dart:23:11)
#21 _StringAdapterSink.close (dart:convert/string_conversion.dart:251:11)
#22 _Utf8ConversionSink.close (dart:convert/string_conversion.dart:305:20)
#23 _ConverterStreamEventSink.close (dart:convert/chunked_conversion.dart:82:18)
#24 _SinkTransformerStreamSubscription._handleDone (dart:async/stream_transformers.dart:142:24)
#25 _rootRun (dart:async/zone.dart:1182:47)
#26 _CustomZone.run (dart:async/zone.dart:1093:19)
#27 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
#28 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:410:13)
#29 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:420:15)
#30 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:305:7)
#31 _SyncStreamControllerDispatch._sendDone (dart:async/stream_controller.dart:816:19)
#32 _StreamController._closeUnchecked (dart:async/stream_controller.dart:671:7)
#33 _StreamController.close (dart:async/stream_controller.dart:664:5)
#34 _Socket._onData (dart:io-patch/socket_patch.dart:1976:21)
#35 _rootRunUnary (dart:async/zone.dart:1206:13)
#36 _CustomZone.runUnary (dart:async/zone.dart:1100:19)
#37 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1005:7)
#38 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:357:11)
#39 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:285:7)
#40 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:808:19)
#41 _StreamController._add (dart:async/stream_controller.dart:682:7)
#42 _StreamController.add (dart:async/stream_controller.dart:624:5)
#43 new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1512:35)
#44 _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1010:18)
#45 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#46 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#47 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:120:13)
#48 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:185:5)
dart:async _Completer.completeError
test/integration.shard/test_driver.dart 379:18 FlutterTestDriver._waitFor.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
test/integration.shard/test_driver.dart FlutterTestDriver._waitFor.<fn>
===== asynchronous gap ===========================
dart:async _StreamImpl.listen
test/integration.shard/test_driver.dart 358:35 FlutterTestDriver._waitFor
test/integration.shard/test_driver.dart 555:54 FlutterRunTestDriver._setupProcess.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
test/integration.shard/test_driver.dart FlutterRunTestDriver._setupProcess.<fn>
test/integration.shard/test_driver.dart 574:6 FlutterRunTestDriver._setupProcess
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
test/integration.shard/test_driver.dart 456:11 FlutterRunTestDriver.run
test/integration.shard/expression_evaluation_web_test.dart 140:22 batch2.startPaused
test/integration.shard/expression_evaluation_web_test.dart 156:22 batch2.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
test/integration.shard/expression_evaluation_web_test.dart batch2.<fn>
dart:async runZoned
test/src/common.dart 220:14 testWithoutContext.<fn>
test/src/common.dart 190:18 test.<fn>
It's also surprising that we're seeing this failure on the non-web HHH bot. Is that a bug?