Filed by: ctuns [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=351854502&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/DKkglMrDSb2kSham41rl-Q/runs/0/artifacts/public/logs/live_backing.log

[task 2021-09-17T07:37:24.195Z] 07:37:24     INFO -  TEST-PASS | toolkit/components/cleardata/tests/unit/test_permissions.js | test_3rdpartystorage_permissions - [test_3rdpartystorage_permissions : 420] true == true
[task 2021-09-17T07:37:24.196Z] 07:37:24     INFO -  (xpcshell/head.js) | test run_next_test 5 pending (2)
[task 2021-09-17T07:37:24.196Z] 07:37:24     INFO -  (xpcshell/head.js) | test test_3rdpartystorage_permissions finished (2)
[task 2021-09-17T07:37:24.196Z] 07:37:24     INFO -  (xpcshell/head.js) | test run_next_test 5 finished (1)
[task 2021-09-17T07:37:24.197Z] 07:37:24     INFO -  exiting test
[task 2021-09-17T07:37:24.197Z] 07:37:24     INFO -  PID 13412 | Storage connection not closed: permissions.sqliteHit MOZ_CRASH() at /builds/worker/checkouts/gecko/storage/mozStorageService.cpp:728
[task 2021-09-17T07:37:24.197Z] 07:37:24     INFO -  Initializing stack-fixing for the first stack frame, this may take a while...
[task 2021-09-17T07:37:35.124Z] 07:37:35     INFO -  PID 13412 | #01: mozilla::storage::Service::Observe(nsISupports*, char const*, char16_t const*) [storage/mozStorageService.cpp:728]
[task 2021-09-17T07:37:35.134Z] 07:37:35     INFO -  PID 13412 | #02: nsObserverList::NotifyObservers(nsISupports*, char const*, char16_t const*) [xpcom/ds/nsObserverList.cpp:69]
[task 2021-09-17T07:37:35.134Z] 07:37:35     INFO -  PID 13412 | #03: nsObserverService::NotifyObservers(nsISupports*, char const*, char16_t const*) [xpcom/ds/nsObserverService.cpp:294]
[task 2021-09-17T07:37:35.135Z] 07:37:35     INFO -  PID 13412 | #04: mozilla::AdvanceShutdownPhaseInternal(mozilla::ShutdownPhase, bool, char16_t const*, nsCOMPtr<nsISupports> const&) [xpcom/base/AppShutdown.cpp:362]
[task 2021-09-17T07:37:35.135Z] 07:37:35     INFO -  PID 13412 | #05: mozilla::ShutdownXPCOM(nsIServiceManager*) [xpcom/build/XPCOMInit.cpp:624]
[task 2021-09-17T07:37:35.136Z] 07:37:35     INFO -  PID 13412 | #06: XRE_XPCShellMain(int, char**, char**, XREShellData const*) [js/xpconnect/src/XPCShellImpl.cpp:1432]
[task 2021-09-17T07:37:35.180Z] 07:37:35     INFO -  PID 13412 | #07: NS_internal_main(int, char**, char**) [js/xpconnect/shell/xpcshell.cpp:82]
[task 2021-09-17T07:37:35.189Z] 07:37:35     INFO -  PID 13412 | #08: wmain(int, wchar_t**) [toolkit/xre/nsWindowsWMain.cpp:131]
[task 2021-09-17T07:37:35.189Z] 07:37:35     INFO -  PID 13412 | #09: __scrt_common_main_seh() [/builds/worker/workspace/obj-build/js/xpconnect/shell/d:/agent/_work/1/s/src/vctools/crt/vcstartup/src/startup/exe_common.inl:288]
[task 2021-09-17T07:37:35.193Z] 07:37:35     INFO -  fix-stacks: error: failed to read debug info file `wkernel32.pdb` for `C:\Windows\System32\KERNEL32.DLL`
[task 2021-09-17T07:37:35.193Z] 07:37:35     INFO -  fix-stacks: note: this is expected and harmless for all PDB files on opt automation runs
[task 2021-09-17T07:37:35.193Z] 07:37:35     INFO -  fix-stacks: The system cannot find the file specified. (os error 2)
[task 2021-09-17T07:37:35.194Z] 07:37:35     INFO -  PID 13412 | #10: BaseThreadInitThunk [C:\Windows\System32\KERNEL32.DLL + 0x17034]
[task 2021-09-17T07:37:35.198Z] 07:37:35     INFO -  fix-stacks: error: failed to read debug info file `wntdll.pdb` for `C:\Windows\SYSTEM32\ntdll.dll`
[task 2021-09-17T07:37:35.199Z] 07:37:35     INFO -  fix-stacks: note: this is expected and harmless for all PDB files on opt automation runs
[task 2021-09-17T07:37:35.199Z] 07:37:35     INFO -  fix-stacks: The system cannot find the file specified. (os error 2)
[task 2021-09-17T07:37:35.199Z] 07:37:35     INFO -  PID 13412 | #11: RtlUserThreadStart [C:\Windows\SYSTEM32\ntdll.dll + 0x52651]
[task 2021-09-17T07:37:35.199Z] 07:37:35     INFO -  <<<<<<<
[task 2021-09-17T07:37:42.515Z] 07:37:42  WARNING -  PROCESS-CRASH | toolkit/components/cleardata/tests/unit/test_permissions.js | application crashed [@ nsObserverList::NotifyObservers(nsISupports*, char const*, char16_t const*)]
[task 2021-09-17T07:37:42.518Z] 07:37:42     INFO -  Mozilla crash reason: MOZ_CRASH()
[task 2021-09-17T07:37:42.518Z] 07:37:42     INFO -  Crash dump filename: C:\Users\task_163186094208581\AppData\Local\Temp\xpc-other-4l9pavuz\d5c8afa6-d813-42a4-a053-3aaa393bc2b5.dmp
[task 2021-09-17T07:37:42.518Z] 07:37:42     INFO -  Operating system: Windows NT
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -                    10.0.19041
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -  CPU: amd64
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -       family 6 model 85 stepping 7
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -       8 CPUs
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -  GPU: UNKNOWN
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -  Crash reason:  EXCEPTION_BREAKPOINT
[task 2021-09-17T07:37:42.519Z] 07:37:42     INFO -  Crash address: 0xec5e0aae
[task 2021-09-17T07:37:42.520Z] 07:37:42     INFO -  Process uptime: 1 seconds
[task 2021-09-17T07:37:42.520Z] 07:37:42     INFO -  Thread 0 tid 9700 (crashed) - GeckoMain 0  xul.dll!mozilla::storage::Service::Observe(nsISupports*, char const*, char16_t const*) [mozStorageService.cpp:e6a5efd2b988caa1adbdc56e5400296b0a4c9723 : 728 + 0x0]

Very low failure rate and only occurs on debug.

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.