Filed by: ccoroiu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=280152423&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WS0LffHGTrq6xvz00zGVag/runs/0/artifacts/public/logs/live_backing.log

[task 2019-12-08T00:38:01.030Z] 00:38:01 INFO - PID 6972 | [Parent 11704, Gecko_IOThread] WARNING: Failed to launch tab subprocess: file z:/task_1575756450/build/src/ipc/glue/GeckoChildProcessHost.cpp, line 690
[task 2019-12-08T00:52:58.295Z] 00:52:58 INFO - Timeout waiting for test completion; killing browser...
[task 2019-12-08T00:53:08.004Z] 00:53:08 INFO - rmtree() failed for "('c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb',)". Reason: The process cannot access the file because it is being used by another process (13). Retrying...
[task 2019-12-08T00:53:08.005Z] 00:53:08 INFO - rmtree() failed for "('c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb',)". Reason: The process cannot access the file because it is being used by another process (13). Retrying...
[task 2019-12-08T00:53:08.008Z] 00:53:08 INFO - rmtree() failed for "('c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb',)". Reason: The process cannot access the file because it is being used by another process (13). Retrying...
[task 2019-12-08T00:53:08.010Z] 00:53:08 INFO - rmtree() failed for "('c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb',)". Reason: The process cannot access the file because it is being used by another process (13). Retrying...
[task 2019-12-08T00:53:08.012Z] 00:53:08 INFO - rmtree() failed for "('c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb',)". Reason: The process cannot access the file because it is being used by another process (13). Retrying...
[task 2019-12-08T00:53:08.014Z] 00:53:08 INFO - Exception while removing profile directory: c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb
[task 2019-12-08T00:53:08.015Z] 00:53:08 INFO - [Error 32] The process cannot access the file because it is being used by another process: 'c:\users\testdroid.yoga-003\appdata\local\temp\tmphftypb\profile\cert9.db'
[task 2019-12-08T00:53:08.016Z] 00:53:08 INFO - TEST-UNEXPECTED-ERROR | sessionrestore_many_windows | timeout
[task 2019-12-08T00:53:08.018Z] 00:53:08 ERROR - Traceback (most recent call last):
[task 2019-12-08T00:53:08.020Z] 00:53:08 INFO - File "C:\tasks\task_1575743711\build\tests\talos\talos\run_tests.py", line 302, in run_tests
[task 2019-12-08T00:53:08.021Z] 00:53:08 INFO - talos_results.add(mytest.runTest(browser_config, test))
[task 2019-12-08T00:53:08.021Z] 00:53:08 INFO - File "C:\tasks\task_1575743711\build\tests\talos\talos\ttest.py", line 64, in runTest
[task 2019-12-08T00:53:08.022Z] 00:53:08 INFO - return self._runTest(browser_config, test_config, setup)
[task 2019-12-08T00:53:08.022Z] 00:53:08 INFO - File "C:\tasks\task_1575743711\build\tests\talos\talos\ttest.py", line 216, in _runTest
[task 2019-12-08T00:53:08.023Z] 00:53:08 INFO - debugger_args=browser_config['debugger_args']
[task 2019-12-08T00:53:08.023Z] 00:53:08 INFO - File "C:\tasks\task_1575743711\build\tests\talos\talos\talos_process.py", line 143, in run_browser
[task 2019-12-08T00:53:08.024Z] 00:53:08 INFO - raise TalosError("timeout")
[task 2019-12-08T00:53:08.024Z] 00:53:08 INFO - TalosError: timeout
[task 2019-12-08T00:53:08.025Z] 00:53:08 INFO - TEST-INFO took 958410ms
[task 2019-12-08T00:53:08.025Z] 00:53:08 INFO - SUITE-END | took 958s
[task 2019-12-08T00:56:03.439Z] 00:56:03 INFO - WARNING | IO Completion Port failed to signal process shutdown
[task 2019-12-08T00:56:03.440Z] 00:56:03 INFO - Parent process 6972 exited with children alive:
[task 2019-12-08T00:56:03.444Z] 00:56:03 INFO - PIDS: 11704, 12368
[task 2019-12-08T00:56:03.463Z] 00:56:03 INFO - Attempting to kill them, but no guarantee of success
[task 2019-12-08T00:56:03.615Z] 00:56:03 ERROR - Return code: 2
[task 2019-12-08T00:56:03.615Z] 00:56:03 WARNING - setting return code to 2
[task 2019-12-08T00:56:03.615Z] 00:56:03 ERROR - # TBPL FAILURE #