Filed by: smolnar [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=318474229&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/B7WZoxTFSiOsu7-zQQEbZw/runs/0/artifacts/public/logs/live_backing.log

"11:38:38     INFO -  197 INFO TEST-START | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  Buffered messages logged at 11:38:38
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  198 INFO TEST-PASS | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | A valid string reason is expected
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  199 INFO TEST-PASS | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | Reason cannot be empty
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  200 INFO TEST-PASS | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | images are the same
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  201 INFO TEST-PASS | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | getError was expected value: NO_ERROR : there should be no errors
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  Buffered messages finished
[task 2020-10-13T11:44:17.122Z] 11:44:05  WARNING -  202 INFO TEST-UNEXPECTED-FAIL | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | Test timed out.
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -      SimpleTest.ok@SimpleTest/SimpleTest.js:417:16
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -      reportError@SimpleTest/TestRunner.js:143:22
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -      TestRunner._checkForHangs@SimpleTest/TestRunner.js:165:18
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  203 INFO TEST-OK | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_001_to_008.html | took 318215ms
[task 2020-10-13T11:44:17.122Z] 11:44:05     INFO -  204 INFO TEST-START | dom/canvas/test/webgl-conf/generated/test_conformance__ogles__GL__mat__mat_009_to_016.html"```