Filed by: nbeleuzu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=276516426&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Z0EhwpUsSYGLJ0KrSRX3-A/runs/0/artifacts/public/logs/live_backing.log

[task 2019-11-16T00:05:50.991Z] 00:05:50 INFO - TEST-INFO | started process screenshot
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - TEST-INFO | screenshot: exit 0
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - Buffered messages logged at 00:05:44
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - Entering test bound test
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - Buffered messages finished
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_localStorage_before_after.js | localStorage should contain 1 item - Got , expected 1
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - Stack trace:
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - chrome://mochikit/content/browser-test.js:test_is:1314
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - chrome://mochitests/content/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_localStorage_before_after.js:test:25
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1069
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1104
[task 2019-11-16T00:05:51.056Z] 00:05:51 INFO - chrome://mochikit/content/browser-test.js:nextTest/<:932
[task 2019-11-16T00:05:51.057Z] 00:05:51 INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:805
[task 2019-11-16T00:05:51.057Z] 00:05:51 INFO - GECKO(10584) | ++DOCSHELL 000001EB22B08000 == 22 [pid = 11184] [id = {ebfc5d74-5eac-476b-b864-cf25138141b2}]
[task 2019-11-16T00:05:51.057Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 157 (000001EB362F6200) [pid = 11184] [serial = 243] [outer = 0000000000000000]
[task 2019-11-16T00:05:51.057Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 158 (000001EB25FC0800) [pid = 11184] [serial = 244] [outer = 000001EB362F6200]
[task 2019-11-16T00:05:51.057Z] 00:05:51 INFO - Console message: [JavaScript Error: "The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol." {file: "http://mochi.test:8888/browser/browser/components/privatebrowsing/test/browser/browser_privatebrowsing_localStorage_before_after_page.html" line: 0}]
[task 2019-11-16T00:05:51.178Z] 00:05:51 INFO - GECKO(10584) | ++DOCSHELL 000001EB22EC2800 == 23 [pid = 11184] [id = {614bf20e-9be6-45c5-96ef-c2c701bf7fda}]
[task 2019-11-16T00:05:51.178Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 159 (000001EB362F63E0) [pid = 11184] [serial = 245] [outer = 0000000000000000]
[task 2019-11-16T00:05:51.304Z] 00:05:51 INFO - GECKO(10584) | ++DOCSHELL 0000023452649000 == 1 [pid = 2760] [id = {49cc3e47-16c7-4e1a-b528-4e4068cc20aa}]
[task 2019-11-16T00:05:51.304Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 1 (0000023458620020) [pid = 2760] [serial = 16] [outer = 0000000000000000]
[task 2019-11-16T00:05:51.304Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 2 (00000234526B8800) [pid = 2760] [serial = 17] [outer = 0000023458620020]
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glBlendBarrierKHR" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glCopyImageSubDataEXT" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageCallback" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageCallbackARB" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageControl" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageControlARB" by glcontext
[task 2019-11-16T00:05:51.309Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageInsert" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glDebugMessageInsertARB" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glGetDebugMessageLog" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glGetDebugMessageLogARB" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glGetObjectLabel" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glGetObjectPtrLabel" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glObjectLabel" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glObjectPtrLabel" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glPopDebugGroup" by glcontext
[task 2019-11-16T00:05:51.310Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glPushDebugGroup" by glcontext
[task 2019-11-16T00:05:51.311Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glTextureStorage1DEXT" by glcontext
[task 2019-11-16T00:05:51.311Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glTextureStorage2DEXT" by glcontext
[task 2019-11-16T00:05:51.311Z] 00:05:51 INFO - GECKO(10584) | [2019-11-16T00:05:51Z WARN webrender_bindings::bindings] Could not find symbol "glTextureStorage3DEXT" by glcontext
[task 2019-11-16T00:05:51.372Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 160 (000001EB32E46400) [pid = 11184] [serial = 246] [outer = 000001EB362F63E0]
[task 2019-11-16T00:05:51.532Z] 00:05:51 INFO - GECKO(10584) | ++DOMWINDOW == 3 (0000023458C63C00) [pid = 2760] [serial = 18] [outer = 0000023458620020]