Filed by: aciure [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=267182990&repo=mozilla-central
Full log: https://queue.taskcluster.net/v1/task/X5by0VASSGGDV6dkBJJfhQ/runs/0/artifacts/public/logs/live_backing.log

[task 2019-09-18T05:26:56.968Z] 05:26:56 INFO - TEST-START | netwerk/test/unit/test_esni_dns_fetch.js
[task 2019-09-18T05:26:59.252Z] 05:26:59 WARNING - TEST-UNEXPECTED-FAIL | netwerk/test/unit/test_esni_dns_fetch.js | xpcshell return code: 0
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - TEST-INFO took 2281ms
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - >>>>>>>
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: Couldn't get the user appdata directory. Crash events may not be produced.: file /builds/worker/workspace/build/src/toolkit/crashreporter/nsExceptionHandler.cpp, line 2632
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - PID 13338 | Couldn't convert chrome URL: chrome://branding/locale/brand.properties
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - (xpcshell/head.js) | test MAIN run_test pending (1)
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - TEST-PASS | netwerk/test/unit/test_esni_dns_fetch.js | run_test - [run_test : 20] "46612" != null
[task 2019-09-18T05:26:59.253Z] 05:26:59 INFO - TEST-PASS | netwerk/test/unit/test_esni_dns_fetch.js | run_test - [run_test : 21] "46612" != ""
[task 2019-09-18T05:26:59.254Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80520012: file /builds/worker/workspace/build/src/extensions/permissions/nsPermissionManager.cpp, line 2883
[task 2019-09-18T05:26:59.254Z] 05:26:59 INFO - (xpcshell/head.js) | test pending (2)
[task 2019-09-18T05:26:59.255Z] 05:26:59 INFO - PID 13338 | starting test 0
[task 2019-09-18T05:26:59.255Z] 05:26:59 INFO - (xpcshell/head.js) | test pending (3)
[task 2019-09-18T05:26:59.256Z] 05:26:59 INFO - (xpcshell/head.js) | test MAIN run_test finished (3)
[task 2019-09-18T05:26:59.256Z] 05:26:59 INFO - running event loop
[task 2019-09-18T05:26:59.257Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: Could not get the program name for a cubeb stream.: 'NS_SUCCEEDED(rv)', file /builds/worker/workspace/build/src/dom/media/CubebUtils.cpp, line 384
[task 2019-09-18T05:26:59.257Z] 05:26:59 INFO - "CONSOLE_MESSAGE: (info) No chrome package registered for chrome://branding/locale/brand.properties"
[task 2019-09-18T05:26:59.258Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, kKnownEsrVersion) failed with result 0x80004002: file /builds/worker/workspace/build/src/toolkit/components/resistfingerprinting/nsRFPService.cpp, line 661
[task 2019-09-18T05:26:59.258Z] 05:26:59 WARNING - TEST-UNEXPECTED-FAIL | netwerk/test/unit/test_esni_dns_fetch.js | onLookupByTypeComplete - [onLookupByTypeComplete : 77] false == true
[task 2019-09-18T05:26:59.259Z] 05:26:59 INFO - /builds/worker/workspace/build/tests/xpcshell/tests/netwerk/test/unit/test_esni_dns_fetch.js:onLookupByTypeComplete:77
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - /builds/worker/workspace/build/tests/xpcshell/head.js:_do_main:246
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - /builds/worker/workspace/build/tests/xpcshell/head.js:_execute_test:573
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - -e:null:1
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - exiting test
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - PID 13338 | JavaScript error: /builds/worker/workspace/build/tests/xpcshell/head.js, line 789: NS_ERROR_ABORT:
[task 2019-09-18T05:26:59.260Z] 05:26:59 INFO - "CONSOLE_MESSAGE: (error) [JavaScript Error: "NS_ERROR_ABORT: " {file: "/builds/worker/workspace/build/tests/xpcshell/head.js" line: 789}]"
[task 2019-09-18T05:26:59.262Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: OOPDeinit() without successful OOPInit(): file /builds/worker/workspace/build/src/toolkit/crashreporter/nsExceptionHandler.cpp, line 3114
[task 2019-09-18T05:26:59.262Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: XPCOM objects created/destroyed from static ctor/dtor: file /builds/worker/workspace/build/src/xpcom/base/nsTraceRefcnt.cpp, line 198
[task 2019-09-18T05:26:59.263Z] 05:26:59 INFO - PID 13338 | [13338, Main Thread] WARNING: XPCOM objects created/destroyed from static ctor/dtor: file /builds/worker/workspace/build/src/xpcom/base/nsTraceRefcnt.cpp, line 198
[task 2019-09-18T05:26:59.263Z] 05:26:59 INFO - PID 13338 | nsStringStats
[task 2019-09-18T05:26:59.264Z] 05:26:59 INFO - PID 13338 | => mAllocCount: 10523
[task 2019-09-18T05:26:59.264Z] 05:26:59 INFO - PID 13338 | => mReallocCount: 0
[task 2019-09-18T05:26:59.265Z] 05:26:59 INFO - PID 13338 | => mFreeCount: 10523
[task 2019-09-18T05:26:59.265Z] 05:26:59 INFO - PID 13338 | => mShareCount: 8025
[task 2019-09-18T05:26:59.265Z] 05:26:59 INFO - PID 13338 | => mAdoptCount: 191
[task 2019-09-18T05:26:59.266Z] 05:26:59 INFO - PID 13338 | => mAdoptFreeCount: 191
[task 2019-09-18T05:26:59.266Z] 05:26:59 INFO - PID 13338 | => Process ID: 13338, Thread ID: 13996595123104

Seems to have the same cause as bug 1580976 comment 4

There are 30 total failures in the last 7 days: https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?startday=2019-10-14&endday=2019-10-21&tree=trunk&bug=1582030

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=272068216&repo=autoland&lineNumber=2624

Over the last 7 days there are 73 failures present on this bug. These happen on windows7-32, macosx1014-64-shippable, macosx1014-64, linux64-qr, linux64-ccov, linux64

Here is the most recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=273437469&repo=autoland&lineNumber=4805

https://hg.mozilla.org/mozilla-central/rev/ebcba6624328

https://hg.mozilla.org/integration/mozilla-inbound/rev/ebcba6624328

Junior, could you take a look please?

bug 1584397 just landed, so we probably just need to reenable the test.

https://hg.mozilla.org/mozilla-central/rev/2b5ab692c160