Filed by: aciure [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=248804128&repo=mozilla-inbound
Full log: https://queue.taskcluster.net/v1/task/BB3wmuvKRuqKowMePoIUsw/runs/0/artifacts/public/logs/live_backing.log

20:32:06 INFO - TEST-START | dom/canvas/test/webgl-conf/generated/test_conformance__extensions__webgl-debug-renderer-info.html
20:32:06 INFO - GECKO(1997) | JavaScript error: , line 0: uncaught exception: out of memory
20:32:06 INFO - GECKO(1997) | JavaScript error: http://mochi.test:8888/tests/dom/canvas/test/webgl-conf/mochi-single.html?checkout/conformance/extensions/webgl-debug-renderer-info.html, line 38: TypeError: parent.SimpleTest is undefined
20:37:53 INFO - GECKO(1997) | console.info: services.settings: Start polling for changes
20:44:03 INFO - Buffered messages finished
20:44:03 ERROR - TEST-UNEXPECTED-TIMEOUT | dom/canvas/test/webgl-conf/generated/test_conformance__extensions__webgl-debug-renderer-info.html | application timed out after 370 seconds with no output
20:44:03 ERROR - Force-terminating active process(es).
20:44:03 INFO - Determining child pids from psutil...
20:44:03 INFO - [1998, 1999, 2001, 2002]
20:44:03 INFO - ==> process 1997 launched child process 1998
20:44:03 INFO - ==> process 1997 launched child process 1999
20:44:03 INFO - ==> process 1997 launched child process 2001
20:44:03 INFO - ==> process 1997 launched child process 2002
20:44:03 INFO - Found child pids: set([2001, 2002, 1998, 1999])
20:44:03 INFO - Killing process: 2001
20:44:03 INFO - TEST-INFO | started process screencapture
20:44:03 INFO - TEST-INFO | screencapture: exit 0
20:44:03 INFO - Killing process: 2002
20:44:03 INFO - Not taking screenshot here: see the one that was previously logged
20:44:03 INFO - Killing process: 1998
20:44:03 INFO - Not taking screenshot here: see the one that was previously logged
20:44:03 INFO - Killing process: 1999
20:44:03 INFO - Not taking screenshot here: see the one that was previously logged
20:44:04 INFO - psutil found pid 1999 dead
20:44:04 INFO - psutil found pid 1998 dead
20:44:04 INFO - psutil found pid 2002 dead
20:44:04 INFO - psutil found pid 2001 dead
20:44:04 INFO - Killing process: 1997
20:44:04 INFO - Not taking screenshot here: see the one that was previously logged
20:44:04 INFO - psutil found pid 1997 dead
20:44:04 WARNING - runtests.py | Failed to get app exit code - running/crashed?