https://uberchromegw.corp.google.com/i/chromium.perf/builders/Mac%20Retina%20Perf%20%281%29?numbuilds=200


It becomes very flaky since 11/4. Now failing.

Traceback (most recent call last):
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 79, in _RunStoryAndProcessErrorIfNeeded
    test.WillRunStory(state.platform)
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py", line 279, in WillRunStory
    platform.tracing_controller.StartTracing(self._tbm_options.config)
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/core/tracing_controller.py", line 43, in StartTracing
    self._tracing_controller_backend.StartTracing(tracing_config, timeout)
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py", line 91, in StartTracing
    if agent.StartAgentTracing(config, timeout):
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/battor_tracing_agent.py", line 73, in StartAgentTracing
    self._battor.StartTracing()
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 209, in StartTracing
    self._FlashBattOr()
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 150, in _FlashBattOr
    self.StopShell()
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 188, in StopShell
    self._SendBattOrCommand(self._EXIT_CMD, check_return=False)
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 317, in _SendBattOrCommand
    status = self._SendBattOrCommandImpl(cmd)
  File "/b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py", line 312, in _SendBattOrCommandImpl
    self._battor_shell.stdin.write('%s\n' % cmd)
IOError: [Errno 32] Broken pipe

INFO:root:Try printing formatted exception: None None None

Exception raised when cleaning story run: 

Traceback (most recent call last):
  _RunStoryAndProcessErrorIfNeeded at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py:106
    state.DidRunStory(results)
  traced_function at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:75
    return func(*args, **kwargs)
  DidRunStory at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/page/shared_page_state.py:155
    if self._current_page.credentials and self._did_login_for_current_page:
AttributeError: 'NoneType' object has no attribute 'credentials'

Locals:
  results : <telemetry.internal.results.page_test_results.PageTestResults object at 0x103920fd0>

[  FAILED  ] browse:media:imgur (3238 ms)
INFO:root:Try printing formatted exception: None None None

Traceback (most recent call last):
  RunBenchmark at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py:343
    benchmark.ShouldTearDownStateAfterEachStorySetRun())
  Run at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py:229
    _RunStoryAndProcessErrorIfNeeded(story, results, state, test)
  _RunStoryAndProcessErrorIfNeeded at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py:79
    test.WillRunStory(state.platform)
  WillRunStory at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/web_perf/timeline_based_measurement.py:279
    platform.tracing_controller.StartTracing(self._tbm_options.config)
  StartTracing at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/core/tracing_controller.py:43
    self._tracing_controller_backend.StartTracing(tracing_config, timeout)
  StartTracing at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_controller_backend.py:91
    if agent.StartAgentTracing(config, timeout):
  StartAgentTracing at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/telemetry/telemetry/internal/platform/tracing_agent/battor_tracing_agent.py:73
    self._battor.StartTracing()
  StartTracing at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py:209
    self._FlashBattOr()
  _FlashBattOr at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py:150
    self.StopShell()
  StopShell at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py:188
    self._SendBattOrCommand(self._EXIT_CMD, check_return=False)
  _SendBattOrCommand at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py:317
    status = self._SendBattOrCommandImpl(cmd)
  _SendBattOrCommandImpl at /b/c/b/Mac_Retina_Perf__1_/src/third_party/catapult/common/battor/battor/battor_wrapper.py:312
    self._battor_shell.stdin.write('%s\n' % cmd)
IOError: [Errno 32] Broken pipe

Locals:
  cmd : 'Exit'