https://build.chromium.org/p/chromium.perf/builders/Win%2010%20Perf
https://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf/builds/1570

.....
.....
	00007ff8`4c5313d2 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : chrome!base::`anonymous namespace'::ThreadFunc+0xf2
	00007ff8`4d3a5444 : 00007ff8`4c5313b0 00000000`00000000 00000000`00000000 00000000`00000000 : KERNEL32!BaseThreadInitThunk+0x22
	00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x34
	
	  41  Id: d6c.880 Suspend: 0 Teb: 00007ff7`83a06000 Unfrozen
	*** WARNING: Unable to verify checksum for mswsock.dll
	*** ERROR: Symbol file could not be found.  Defaulted to export symbols for mswsock.dll - 
	RetAddr           : Args to Child                                                           : Call Site
	00007ff8`49cfc979 : 00007ff8`49cfc900 00007ff8`49cf0000 00000000`00000000 00000000`00000000 : ntdll!ZwRemoveIoCompletion+0xa
	00007ff8`4c5313d2 : 00007ff8`49cfca40 0000007b`2facc220 0000007b`2fab6490 0000007b`2fab6490 : mswsock!NSPStartup+0x2449
	00007ff8`4d3a5444 : 00007ff8`4c5313b0 00000000`00000000 00000000`00000000 00000000`00000000 : KERNEL32!BaseThreadInitThunk+0x22
	00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x34
********************************************************************************
Standard output:
********************************************************************************
********************************************************************************
System log:
(Not implemented)
(INFO) 2017-11-19 21:36:20,315 devtools_client_backend._IsDevToolsAgentAvailable:80  Devtools client not yet ready: [Errno 10061] No connection could be made because the target machine actively refused it
(INFO) 2017-11-19 21:36:20,315 exception_formatter.PrintFormattedException:19  Try printing formatted exception: None None None
Exception raised when cleaning story run: 
Traceback (most recent call last):
  _RunStoryAndProcessErrorIfNeeded at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\story_runner.py:130
    test.DidRunStory(state.platform, results)
  DidRunStory at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\web_perf\timeline_based_measurement.py:290
    trace_result, _ = platform.tracing_controller.StopTracing()
  StopTracing at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\core\tracing_controller.py:53
    return self._tracing_controller_backend.StopTracing()
  StopTracing at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\tracing_controller_backend.py:109
    self._IssueClockSyncMarker()
  _IssueClockSyncMarker at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\tracing_controller_backend.py:215
    self._RecordIssuerClockSyncMarker)
  RecordClockSyncMarker at c:\b\s\w\ir\third_party\catapult\telemetry\telemetry\internal\platform\tracing_agent\chrome_tracing_agent.py:178
    raise ChromeClockSyncError('Cannot issue clock sync. No devtools clients')
ChromeClockSyncError: Cannot issue clock sync. No devtools clients
Locals:
  devtools_clients                             : []
  record_controller_clock_sync_marker_callback : <bound method TracingControllerBackend._RecordIssuerClockSyncMarker of <telemetry.internal.platform.tracing_controller_backend.TracingControllerBackend object at 0x00000000050EF9E8>>
  sync_id                                      : '068b25a8-12ba-4246-8d1f-724e7abb9785'
(INFO) 2017-11-19 21:36:20,325 browser.Close:240  Browser is closed.
[  FAILED  ] load_accessibility:shopping:amazon@{'case': 'load_accessibility', 'group': 'shopping'} (54884 ms)