$ tools/test.py -c dartk -a x64 -m debug service/gc_test                                                                                    
Test configuration:
    custom configuration(architecture: x64, compiler: dartk, mode: debug, runtime: vm, system: linux, vm-options: [], timeout: null, preview-dart-2)
Suites tested: service

FAILED: dartk-vm debug_x64 service/gc_test
Expected: Pass
Actual: RuntimeError

--- Command "vm" (took 08.000402s):
DART_CONFIGURATION=DebugX64 out/DebugX64/dart --no-background-compilation --error_on_bad_type --error_on_bad_override --ignore-unrecognized-flags --packages=/usr/local/google/home/vegorov/src/dart/sdk/.packages /usr/local/google/home/vegorov/src/dart/sdk/runtime/observatory/tests/service/gc_test.dart

exit code:
255

stdout:
** Launching SERVICE_TEST_TESTEE=true out/DebugX64/dart -DDART_SERVICE_USE_AUTH=false --profiler --no-background-compilation --error_on_bad_type --error_on_bad_override --ignore-unrecognized-flags --packages=/usr/local/google/home/vegorov/src/dart/sdk/.packages --enable-vm-service:0 /usr/local/google/home/vegorov/src/dart/sdk/runtime/observatory/tests/service/gc_test.dart
>testee>out> Observatory listening on http://127.0.0.1:33139/
** Signaled to run test queries on http://127.0.0.1:33139/
>testee>out> 
Loading VM...
Done loading VM
Running gc_test.dart [1/1]
>testee>err> ../../../../../../usr/local/google/home/vegorov/src/dart/sdk/runtime/vm/service_event.cc: 36: error: expected: isolate == NULL || !Isolate::IsVMInternalIsolate(isolate)
>testee>err> Dumping native stack trace for thread 2b40a
>testee>err> ../../../../../../usr/local/google/home/vegorov/src/dart/sdk/runtime/vm/handles_impl.h: 84: error: expected: thread->top_handle_scope() != NULL
>testee>err> Aborting re-entrant request for stack trace.
** Killing script
Unexpected exception in service tests: Testee exited with -6
#0      _ServiceTesteeLauncher.launch.<anonymous closure>.<anonymous closure> (file:///usr/local/google/home/vegorov/src/dart/sdk/runtime/observatory/tests/service/test_helper.dart:253:11)
#1      _rootRunUnary (dart:async/zone.dart:1132:38)
#2      _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#3      _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#4      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#5      Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#6      Future._completeWithValue (dart:async/future_impl.dart:486:5)
#7      Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:516:7)
#8      _rootRun (dart:async/zone.dart:1124:13)
#9      _CustomZone.run (dart:async/zone.dart:1021:19)
#10     _CustomZone.runGuarded (dart:async/zone.dart:923:7)
#11     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23)
#12     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#13     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#14     _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#15     _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)

stderr:
Unhandled exception:
Testee exited with -6
#0      _ServiceTesteeLauncher.launch.<anonymous closure>.<anonymous closure> (file:///usr/local/google/home/vegorov/src/dart/sdk/runtime/observatory/tests/service/test_helper.dart:253:11)
#1      _rootRunUnary (dart:async/zone.dart:1132:38)
#2      _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#3      _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#4      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#5      Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#6      Future._completeWithValue (dart:async/future_impl.dart:486:5)
#7      Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:516:7)
#8      _rootRun (dart:async/zone.dart:1124:13)
#9      _CustomZone.run (dart:async/zone.dart:1021:19)
#10     _CustomZone.runGuarded (dart:async/zone.dart:923:7)
#11     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23)
#12     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#13     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#14     _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#15     _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)

--- Re-run this test:
python tools/test.py -m debug -c dartk service/gc_test

[00:08 | 100% | +    0 | -    1]