Filed by: nbeleuzu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=272242575&repo=mozilla-central
Full log: https://queue.taskcluster.net/v1/task/IyMhaMkyTq6MhgxezegaIg/runs/0/artifacts/public/logs/live_backing.log

[task 2019-10-21T20:40:04.698Z] 20:40:04 INFO - PID 14192 | *** Search: _fetchRegion: timeout fetching region information
[task 2019-10-21T20:40:04.699Z] 20:40:04 WARNING - TEST-UNEXPECTED-FAIL | xpcshell.ini:toolkit/components/search/tests/xpcshell/test_maybereloadengine_update_distro.js | test_maybereloadengine_update_distro - [test_maybereloadengine_update_distro : 41] Engines should be reloaded during test, because region fetch succeeded - false == true
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - Z:/task_1571686126/build/tests/xpcshell/tests/toolkit/components/search/tests/xpcshell/test_maybereloadengine_update_distro.js:cont:41
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - exiting test
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - Unexpected exception NS_ERROR_ABORT:
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - _abort_failed_test@Z:\task_1571686126\build\tests\xpcshell\head.js:789:20
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - do_report_result@Z:\task_1571686126\build\tests\xpcshell\head.js:890:5
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - Assert<@Z:\task_1571686126\build\tests\xpcshell\head.js:67:21
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - proto.report@resource://testing-common/Assert.jsm:233:10
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - proto.ok@resource://testing-common/Assert.jsm:259:10
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - cont@Z:/task_1571686126/build/tests/xpcshell/tests/toolkit/components/search/tests/xpcshell/test_maybereloadengine_update_distro.js:41:12
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - async*withGeoServer@Z:/task_1571686126/build/tests/xpcshell/tests/toolkit/components/search/tests/xpcshell/head_search.js:440:11
[task 2019-10-21T20:40:04.699Z] 20:40:04 INFO - test_maybereloadengine_update_distro@Z:/task_1571686126/build/tests/xpcshell/tests/toolkit/components/search/tests/xpcshell/test_maybereloadengine_update_distro.js:68:9
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - run_next_test/_run_next_test/<@Z:\task_1571686126\build\tests\xpcshell\head.js:1565:22
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - _run_next_test@Z:\task_1571686126\build\tests\xpcshell\head.js:1565:38
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - run@Z:\task_1571686126\build\tests\xpcshell\head.js:733:9
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - _do_main@Z:\task_1571686126\build\tests\xpcshell\head.js:246:6
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - _execute_test@Z:\task_1571686126\build\tests\xpcshell\head.js:573:5
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - @-e:1:1
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - exiting test
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - "CONSOLE_MESSAGE: (info) _fetchRegion: timeout fetching region information"
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: _init: Initing search plugin from [distribution]/searchplugins/common/bug645970.xml
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: _addEngineToStore: Adding engine: "bug645970"
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: _addEngineToStore: Duplicate engine found, aborting!
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: ensureBuiltinExtension: bug645970@search.mozilla.org
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: installExtensionEngine: bug645970@search.mozilla.org
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: addEnginesFromExtension: installing locale: bug645970@search.mozilla.org:default
[task 2019-10-21T20:40:04.700Z] 20:40:04 INFO - PID 14192 | *** Search: addEngineWithDetails: Adding "bug645970".

This will go away with Search Modernisation as the test is no longer useful. It is ccov only, so we'll disable it there.

This test is obsolete post search modernisation.

https://hg.mozilla.org/mozilla-central/rev/b54017b77a33

This test was removed by bug 1658920.