Bug: Intermittent browser/components/customizableui/test/browser_947914_button_zoomReset.js | Found a tab after previous test timed out: http://example.com/ -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2020-04-24 18:42:52+00:00
Resolved: 2020-11-16 06:14:32+00:00

**Filed by:** malexandru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=299294113&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/LsHLOPUAR7WSYic7DNE74g/runs/0/artifacts/public/logs/live_backing.log

---

```
[task 2020-04-24T17:58:46.033Z] 17:58:46     INFO - TEST-START | browser/components/customizableui/test/browser_947914_button_zoomReset.js
[task 2020-04-24T17:58:46.051Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 000002B0358A4000 == 4 [pid = 6276] [id = {dcb4fa64-95ed-401b-b7a5-3d63eee2c94d}]
[task 2020-04-24T17:58:46.051Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 18 (000002B033F444D0) [pid = 6276] [serial = 29] [outer = 0000000000000000]
[task 2020-04-24T17:58:46.051Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 19 (000002B03736E000) [pid = 6276] [serial = 30] [outer = 000002B033F444D0]
[task 2020-04-24T17:58:46.213Z] 17:58:46     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (0000027421957BC0) [pid = 3940] [serial = 74] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.213Z] 17:58:46     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (0000027421956600) [pid = 3940] [serial = 71] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.213Z] 17:58:46     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (00000274219586A0) [pid = 3940] [serial = 67] [outer = 0000000000000000] [url = http://example.com/browser/browser/components/customizableui/test/dummy_history_item.html]
[task 2020-04-24T17:58:46.393Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 20 (000002B03851BC00) [pid = 6276] [serial = 31] [outer = 000002B033F444D0]
[task 2020-04-24T17:58:46.878Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023359AE1000 == 17 [pid = 9488] [id = {8c1284af-a4f6-4a41-ac45-ba01927f12cc}] [url = about:blank]
[task 2020-04-24T17:58:46.878Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002335701E400 == 16 [pid = 9488] [id = {78048224-b956-46db-9bed-6de88ef1cc99}] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (000002B0336BE400) [pid = 6276] [serial = 10] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (000002B033F77800) [pid = 6276] [serial = 16] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (000002B033F76000) [pid = 6276] [serial = 13] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 16 (000002B033F7BC00) [pid = 6276] [serial = 11] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (000002B0358A5800) [pid = 6276] [serial = 14] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.896Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (000002B03736F000) [pid = 6276] [serial = 17] [outer = 0000000000000000] [url = http://example.com/browser/browser/components/customizableui/test/dummy_history_item.html]
[task 2020-04-24T17:58:46.957Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002B033F7B400 == 3 [pid = 6276] [id = {00b99ed2-4c28-4be4-9afd-d087922f60a9}] [url = about:blank]
[task 2020-04-24T17:58:46.959Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002B0336B2C00 == 2 [pid = 6276] [id = {84143993-7734-4871-b145-b6ea2f03786c}] [url = http://example.com/]
[task 2020-04-24T17:58:46.959Z] 17:58:46     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002B037376800 == 1 [pid = 6276] [id = {6c04ae26-9569-4f8a-895f-33fb6d8e662f}] [url = about:printpreview]
[task 2020-04-24T17:58:46.968Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 58 (000002334954AC00) [pid = 9488] [serial = 123] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.968Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 57 (000002334A360000) [pid = 9488] [serial = 114] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.968Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 56 (0000023346492000) [pid = 9488] [serial = 106] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 55 (0000023349541400) [pid = 9488] [serial = 108] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 54 (0000023353806400) [pid = 9488] [serial = 112] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 53 (0000023346232400) [pid = 9488] [serial = 122] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 52 (000002334AA0B800) [pid = 9488] [serial = 110] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 51 (0000023346F5C400) [pid = 9488] [serial = 104] [outer = 0000000000000000] [url = about:mozilla]
[task 2020-04-24T17:58:46.969Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 50 (0000023344F28400) [pid = 9488] [serial = 101] [outer = 0000000000000000] [url = about:robots]
[task 2020-04-24T17:58:46.970Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 49 (0000023346498000) [pid = 9488] [serial = 116] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:46.970Z] 17:58:46     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 48 (0000023346167800) [pid = 9488] [serial = 120] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:48.028Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (000002117E52B800) [pid = 8284] [serial = 82] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:48.028Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (0000021104EC4400) [pid = 8284] [serial = 89] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:48.028Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (0000021104EC2800) [pid = 8284] [serial = 84] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:48.028Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 00000211049B0800 == 1 [pid = 8284] [id = {6b39cdd8-4941-4c96-80fb-c2549ddc1f1b}] [url = about:blank]
[task 2020-04-24T17:58:48.029Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000021104EC1400 == 0 [pid = 8284] [id = {6236bc97-e41c-4606-8315-4b19bf971717}] [url = about:blank]
[task 2020-04-24T17:58:48.059Z] 17:58:48     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (0000021104E5AF10) [pid = 8284] [serial = 85] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:49.102Z] 17:58:49     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 47 (0000023356B8E650) [pid = 9488] [serial = 127] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:49.102Z] 17:58:49     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 46 (000002334E048FB0) [pid = 9488] [serial = 131] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002741B198000 == 1 [pid = 3940] [id = {4b859390-1ea6-4b31-aed3-1511a0cc5c50}] [url = about:blank]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (0000027420FB9000) [pid = 3940] [serial = 75] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (000002742319A000) [pid = 3940] [serial = 78] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (00000274261EF400) [pid = 3940] [serial = 76] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (0000027420FB7800) [pid = 3940] [serial = 70] [outer = 0000000000000000] [url = http://example.com/browser/browser/components/customizableui/test/dummy_history_item.html]
[task 2020-04-24T17:58:50.121Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (00000274231A1800) [pid = 3940] [serial = 73] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.122Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (000002741B1A7000) [pid = 3940] [serial = 81] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.161Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (0000027421958A40) [pid = 3940] [serial = 77] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:50.161Z] 17:58:50     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (0000027421956090) [pid = 3940] [serial = 80] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.055Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (000002B037E03000) [pid = 6276] [serial = 27] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.055Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (000002B033F75C00) [pid = 6276] [serial = 22] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.055Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (000002B03737A800) [pid = 6276] [serial = 26] [outer = 0000000000000000] [url = about:printpreview]
[task 2020-04-24T17:58:51.055Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (000002B033F7E400) [pid = 6276] [serial = 19] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.055Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (000002B037377C00) [pid = 6276] [serial = 25] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.106Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (000002B033F42090) [pid = 6276] [serial = 21] [outer = 0000000000000000] [url = http://example.com/]
[task 2020-04-24T17:58:51.106Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (000002B033F43BC0) [pid = 6276] [serial = 18] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:51.106Z] 17:58:51     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (000002B033F42B70) [pid = 6276] [serial = 24] [outer = 0000000000000000] [url = http://example.com/]
[task 2020-04-24T17:58:52.108Z] 17:58:52     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (0000021104EC4800) [pid = 8284] [serial = 92] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:52.108Z] 17:58:52     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (00000211068C0C00) [pid = 8284] [serial = 87] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:52.149Z] 17:58:52     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (0000021104E5A090) [pid = 8284] [serial = 88] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:52.149Z] 17:58:52     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (0000021104E5A260) [pid = 8284] [serial = 91] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:52.902Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023340D34400 == 15 [pid = 9488] [id = {0311279a-9f48-4e5c-9dd2-f225c89bb6da}] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:52.903Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023356336800 == 14 [pid = 9488] [id = {b6e868f5-7e61-45c9-9765-e224db51341e}] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:52.903Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023346237000 == 13 [pid = 9488] [id = {1b230ab2-4687-49b4-8185-b6d26fca2b95}] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:52.904Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023344F29C00 == 12 [pid = 9488] [id = {022c738d-37a3-4074-a322-519b6f0859ff}] [url = about:preferences]
[task 2020-04-24T17:58:52.904Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023341581000 == 11 [pid = 9488] [id = {d76b2fd0-bd28-40fc-b341-860537d77b5e}] [url = about:mozilla]
[task 2020-04-24T17:58:52.905Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023334B4AC00 == 10 [pid = 9488] [id = {80ae8537-99e8-431e-9a73-3dba5491a53c}] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:52.905Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023349544800 == 9 [pid = 9488] [id = {c73cc8b4-db14-474a-a97e-64c3384cfcbc}] [url = about:robots]
[task 2020-04-24T17:58:52.905Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 45 (0000023359AE3000) [pid = 9488] [serial = 128] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:52.906Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002334AA0D400 == 8 [pid = 9488] [id = {ab992247-79a5-4d8f-9692-9509e78fc319}] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:52.906Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023344F29000 == 7 [pid = 9488] [id = {b2aae56a-734d-4a54-847f-65ac9968f4c5}] [url = about:mozilla]
[task 2020-04-24T17:58:52.906Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023341582400 == 6 [pid = 9488] [id = {c8691aca-b145-45a2-ba05-5e192d4b5ceb}] [url = about:addons]
[task 2020-04-24T17:58:52.907Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000023344F26400 == 5 [pid = 9488] [id = {7da3744e-89ca-48d3-8c51-7b2c03f0ebb1}] [url = chrome://global/content/printPreviewProgress.xhtml]
[task 2020-04-24T17:58:52.907Z] 17:58:52     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 44 (0000023346492400) [pid = 9488] [serial = 132] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:54.226Z] 17:58:54     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (0000027420FB9400) [pid = 3940] [serial = 84] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:54.226Z] 17:58:54     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (00000274261F5C00) [pid = 3940] [serial = 79] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:54.226Z] 17:58:54     INFO - GECKO(5344) | [Child 3940: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (00000274219CC000) [pid = 3940] [serial = 82] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:54.682Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 43 (00000233404C5D40) [pid = 9488] [serial = 40] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.682Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 42 (0000023353257D90) [pid = 9488] [serial = 70] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.682Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 41 (00000233404C5600) [pid = 9488] [serial = 121] [outer = 0000000000000000] [url = about:addons]
[task 2020-04-24T17:58:54.682Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 40 (00000233404C5430) [pid = 9488] [serial = 129] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 39 (00000233415A4BC0) [pid = 9488] [serial = 1] [outer = 0000000000000000] [url = chrome://gfxsanity/content/sanityparent.html]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 38 (000002334FE19480) [pid = 9488] [serial = 54] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 37 (00000233566D1C60) [pid = 9488] [serial = 125] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 36 (00000233404C5090) [pid = 9488] [serial = 66] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 35 (000002334EBFBA40) [pid = 9488] [serial = 78] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 34 (0000023344DF4BC0) [pid = 9488] [serial = 50] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 33 (00000233404C5B70) [pid = 9488] [serial = 82] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.683Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 32 (00000233550139A0) [pid = 9488] [serial = 62] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.684Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 31 (00000233457A9D90) [pid = 9488] [serial = 28] [outer = 0000000000000000] [url = about:preferences]
[task 2020-04-24T17:58:54.684Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 30 (000002334EBF9090) [pid = 9488] [serial = 74] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.684Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 29 (000002334EBFAD90) [pid = 9488] [serial = 117] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:54.684Z] 17:58:54     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 28 (0000023355013260) [pid = 9488] [serial = 58] [outer = 0000000000000000] [url = chrome://browser/content/browser.xhtml]
[task 2020-04-24T17:58:55.147Z] 17:58:55     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (000002B03736E000) [pid = 6276] [serial = 30] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:55.147Z] 17:58:55     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (000002B0358ABC00) [pid = 6276] [serial = 20] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:55.147Z] 17:58:55     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (000002B037E03C00) [pid = 6276] [serial = 28] [outer = 0000000000000000] [url = http://example.com/]
[task 2020-04-24T17:58:55.147Z] 17:58:55     INFO - GECKO(5344) | [Child 6276: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (000002B0358AC000) [pid = 6276] [serial = 23] [outer = 0000000000000000] [url = http://example.com/]
[task 2020-04-24T17:58:56.204Z] 17:58:56     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (00000211068B7000) [pid = 8284] [serial = 93] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:56.204Z] 17:58:56     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (00000211068B6000) [pid = 8284] [serial = 90] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 27 (0000023346F19C00) [pid = 9488] [serial = 51] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 26 (000002335701D800) [pid = 9488] [serial = 79] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 25 (000002334AA0E800) [pid = 9488] [serial = 71] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 24 (000002334A362800) [pid = 9488] [serial = 124] [outer = 0000000000000000] [url = about:addons]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 23 (0000023355A1CC00) [pid = 9488] [serial = 63] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.671Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 22 (0000023354FE6C00) [pid = 9488] [serial = 59] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (000002334ADB9800) [pid = 9488] [serial = 41] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (000002334AD19800) [pid = 9488] [serial = 118] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (0000023346F13C00) [pid = 9488] [serial = 75] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (000002334158BC00) [pid = 9488] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (000002334DDEFC00) [pid = 9488] [serial = 55] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 16 (0000023346493400) [pid = 9488] [serial = 83] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.672Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (0000023346490800) [pid = 9488] [serial = 67] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.673Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (000002334972C400) [pid = 9488] [serial = 31] [outer = 0000000000000000] [url = about:preferences]
[task 2020-04-24T17:58:57.673Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (0000023356C6BC00) [pid = 9488] [serial = 126] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.673Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (0000023340D39800) [pid = 9488] [serial = 130] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:58:57.949Z] 17:58:57     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (000002334E047D90) [pid = 9488] [serial = 133] [outer = 0000000000000000] [url = chrome://global/content/printPreviewProgress.xhtml]
[task 2020-04-24T17:59:02.078Z] 17:59:02     INFO - GECKO(5344) | [Parent 9488: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (000002334AA08C00) [pid = 9488] [serial = 134] [outer = 0000000000000000] [url = about:blank]
[task 2020-04-24T17:59:25.817Z] 17:59:25     INFO - GECKO(5344) | [Parent 9488, Jump List] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80520012 (NS_ERROR_FILE_NOT_FOUND): file /builds/worker/checkouts/gecko/widget/windows/WinUtils.cpp, line 1348
[task 2020-04-24T18:00:16.096Z] 18:00:16     INFO - TEST-INFO | started process screenshot
[task 2020-04-24T18:00:16.161Z] 18:00:16     INFO - TEST-INFO | screenshot: exit 0
[task 2020-04-24T18:00:16.162Z] 18:00:16     INFO - Buffered messages logged at 17:58:46
[task 2020-04-24T18:00:16.162Z] 18:00:16     INFO - Entering test bound 
[task 2020-04-24T18:00:16.162Z] 18:00:16     INFO - Check zoom reset button existence and functionality
[task 2020-04-24T18:00:16.162Z] 18:00:16     INFO - TEST-PASS | browser/components/customizableui/test/browser_947914_button_zoomReset.js | Page zoom reset correctly - 
[task 2020-04-24T18:00:16.162Z] 18:00:16     INFO - Waiting for overflow button to show
[task 2020-04-24T18:00:16.163Z] 18:00:16     INFO - Checking if element has non-0 size
[task 2020-04-24T18:00:16.163Z] 18:00:16     INFO - Menu panel was opened
[task 2020-04-24T18:00:16.163Z] 18:00:16     INFO - TEST-PASS | browser/components/customizableui/test/browser_947914_button_zoomReset.js | Zoom reset button exists in Panel Menu - 
[task 2020-04-24T18:00:16.163Z] 18:00:16     INFO - Buffered messages finished
[task 2020-04-24T18:00:16.163Z] 18:00:16     INFO - TEST-UNEXPECTED-FAIL | browser/components/customizableui/test/browser_947914_button_zoomReset.js | Test timed out - 
[task 2020-04-24T18:00:16.202Z] 18:00:16     INFO - GECKO(5344) | MEMORY STAT | vsize 2104547MB | vsizeMaxContiguous 65122536MB | residentFast 406MB | heapAllocated 107MB
[task 2020-04-24T18:00:16.202Z] 18:00:16     INFO - TEST-OK | browser/components/customizableui/test/browser_947914_button_zoomReset.js | took 90167ms
[task 2020-04-24T18:00:16.202Z] 18:00:16     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-04-24T18:00:16.202Z] 18:00:16     INFO - TEST-UNEXPECTED-FAIL | browser/components/customizableui/test/browser_947914_button_zoomReset.js | Found a tab after previous test timed out: http://example.com/ - 
[task 2020-04-24T18:00:16.242Z] 18:00:16     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 00000211049A9800 == 1 [pid = 8284] [id = {fda902dc-b4b5-422a-a351-64ff54f89bed}]
[task 2020-04-24T18:00:16.242Z] 18:00:16     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 1 (0000021104E5A090) [pid = 8284] [serial = 94] [outer = 0000000000000000]
[task 2020-04-24T18:00:16.244Z] 18:00:16     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 2 (00000211049B0800) [pid = 8284] [serial = 95] [outer = 0000021104E5A090]
[task 2020-04-24T18:00:16.275Z] 18:00:16     INFO - GECKO(5344) | [Child 8284: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (0000021104ECBC00) [pid = 8284] [serial = 96] [outer = 0000021104E5A090]
[task 2020-04-24T18:00:16.284Z] 18:00:16     INFO - checking window state
[task 2020-04-24T18:00:16.363Z] 18:00:16     INFO - TEST-START | browser/components/customizableui/test/browser_947987_removable_default.js
```