Filed by: egao [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=264871681&repo=try
Full log: https://queue.taskcluster.net/v1/task/BXSXdWJcSZafqhrKThP3Qg/runs/0/artifacts/public/logs/live_backing.log

Platform: debian 10
Suite: browser-chrome
Chunk: 4

Context:
[task 2019-09-04T02:29:54.840Z] 02:29:54 INFO - TEST-START | browser/components/pocket/test/browser_pocket_ui_check.js
[task 2019-09-04T02:30:39.848Z] 02:30:39 INFO - Not taking screenshot here: see the one that was previously logged
[task 2019-09-04T02:30:39.849Z] 02:30:39 INFO - Buffered messages logged at 02:29:54
[task 2019-09-04T02:30:39.850Z] 02:30:39 INFO - Entering test bound test_setup
[task 2019-09-04T02:30:39.851Z] 02:30:39 INFO - Leaving test bound test_setup
[task 2019-09-04T02:30:39.851Z] 02:30:39 INFO - Entering test bound
[task 2019-09-04T02:30:39.852Z] 02:30:39 INFO - pocket was already enabled, assuming enabled by default for tests
[task 2019-09-04T02:30:39.853Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element pocket-button is present -
[task 2019-09-04T02:30:39.853Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element appMenu-library-pocket-button is present -
[task 2019-09-04T02:30:39.854Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | Button should not have been hidden -
[task 2019-09-04T02:30:39.855Z] 02:30:39 INFO - checking content context menu
[task 2019-09-04T02:30:39.859Z] 02:30:39 INFO - Buffered messages logged at 02:29:55
[task 2019-09-04T02:30:39.859Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element context-pocket is present -
[task 2019-09-04T02:30:39.860Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element context-savelinktopocket is present -
[task 2019-09-04T02:30:39.860Z] 02:30:39 INFO - reset pocket enabled pref
[task 2019-09-04T02:30:39.861Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element appMenu-library-pocket-button is not present -
[task 2019-09-04T02:30:39.862Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element context-pocket is not present -
[task 2019-09-04T02:30:39.863Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | element context-savelinktopocket is not present -
[task 2019-09-04T02:30:39.868Z] 02:30:39 INFO - TEST-PASS | browser/components/pocket/test/browser_pocket_ui_check.js | Button should have been hidden -
[task 2019-09-04T02:30:39.868Z] 02:30:39 INFO - Buffered messages finished
[task 2019-09-04T02:30:39.869Z] 02:30:39 INFO - TEST-UNEXPECTED-FAIL | browser/components/pocket/test/browser_pocket_ui_check.js | Test timed out -
[task 2019-09-04T02:30:39.869Z] 02:30:39 INFO - GECKO(3899) | JavaScript error: resource://testing-common/PromiseTestUtils.jsm, line 112: uncaught exception: Object
[task 2019-09-04T02:30:39.870Z] 02:30:39 INFO - Console message: [JavaScript Error: "uncaught exception: Object" {file: "resource://testing-common/PromiseTestUtils.jsm" line: 112}]
[task 2019-09-04T02:30:39.870Z] 02:30:39 INFO - GECKO(3899) | MEMORY STAT | vsize 2834MB | residentFast 327MB | heapAllocated 114MB
[task 2019-09-04T02:30:39.870Z] 02:30:39 INFO - TEST-OK | browser/components/pocket/test/browser_pocket_ui_check.js | took 45030ms
[task 2019-09-04T02:30:39.927Z] 02:30:39 INFO - checking window state
[task 2019-09-04T02:30:39.927Z] 02:30:39 INFO - Not taking screenshot here: see the one that was previously logged
[task 2019-09-04T02:30:39.928Z] 02:30:39 INFO - TEST-UNEXPECTED-FAIL | browser/components/pocket/test/browser_pocket_ui_check.js | Found a browser window after previous test timed out -

:tkanhema - this particular test from manifest browser/components/pocket/test/browser.ini is failing on experimental debian 10 platform.

Could you redirect the ni to someone who may be able to take a look? To enable debian 10 on mozilla-central, please change the line at https://searchfox.org/mozilla-central/source/taskcluster/taskgraph/transforms/tests.py#578 to read debian10-test and push to try.

Thanks :egao, :etakahashi, will get this to the appropriate team

Closing this bug as debian10 work has been halted and focus redirected to ubuntu1804, and that platform does not observe this failure.