Bug: Intermittent browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | Test timed out -Found a tab after previous test timed out: data:text/html,<html><body></body></html>
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2020-06-18 22:13:34+00:00
Resolved: 2020-07-28 17:05:17+00:00

**Filed by:** dluca [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=306823616&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/ItuCQ8HfTmmNGJbqOqiTgg/runs/0/artifacts/public/logs/live_backing.log

---

```
INFO - TEST-START | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js
[task 2020-06-18T21:15:02.689Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 00000155FEA7F400 == 3 [pid = 5908] [id = {4c52b66e-27ed-4a20-ac32-bb602b39354f}]
[task 2020-06-18T21:15:02.689Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 6 (00000155FE6219A0) [pid = 5908] [serial = 11] [outer = 0000000000000000]
[task 2020-06-18T21:15:02.689Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 7 (00000155FEA80C00) [pid = 5908] [serial = 12] [outer = 00000155FE6219A0]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Child 9000: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (0000016D42B45800) [pid = 9000] [serial = 12] [outer = 0000000000000000] [url = moz-extension://a7cae300-edd9-4bf0-9547-740b7716f606/_generated_background_page.html]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092, Main Thread] WARNING: NS_ENSURE_TRUE(mPresShell) failed: file /builds/worker/checkouts/gecko/layout/generic/nsFrameSelection.cpp, line 1610
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 8 (00000155FF84FC00) [pid = 5908] [serial = 13] [outer = 00000155FE6219A0]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000021D41D3F800 == 2 [pid = 3724] [id = {2a273d75-204d-4eb4-b812-e49f06684e10}] [url = about:blank]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000021D480A0800 == 1 [pid = 3724] [id = {c38c7de9-a0de-4a37-9e10-2ca63c310aad}] [url = about:blank]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 35 (000002530C9DEDE0) [pid = 6092] [serial = 24] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 34 (0000025316387300) [pid = 6092] [serial = 16] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 33 (000002530C9DC9A0) [pid = 6092] [serial = 14] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.690Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 32 (00000253163859A0) [pid = 6092] [serial = 20] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 31 (00000253163857D0) [pid = 6092] [serial = 18] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 30 (0000025316387A40) [pid = 6092] [serial = 22] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Child 5432: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000017039695400 == 0 [pid = 5432] [id = {74849582-ba8e-4b55-8289-c52c2207acc6}] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 00000155FE6BA800 == 2 [pid = 5908] [id = {25d78d9d-5b89-426e-a587-539608124b5c}] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 00000155F8140800 == 1 [pid = 5908] [id = {62685a55-f232-4dfa-945d-e751c7c91f40}] [url = about:blank]
[task 2020-06-18T21:15:02.691Z] 21:15:02     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (00000155FE621090) [pid = 5908] [serial = 6] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:02.953Z] 21:15:02     INFO - GECKO(6656) | [Child 6352: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000001B1662A7400 == 0 [pid = 6352] [id = {d18974d7-5190-45c4-b411-cd49f98af4c5}] [url = about:blank]
[task 2020-06-18T21:15:03.038Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 00000253129E6000 == 14 [pid = 6092] [id = {7fda10f2-d612-44cb-8fe0-f76ad0be3cd6}] [url = about:preferences]
[task 2020-06-18T21:15:03.038Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000025300944000 == 13 [pid = 6092] [id = {c24442ea-e4a1-48d0-8ae6-bf4d5ad368cc}] [url = about:blank]
[task 2020-06-18T21:15:03.038Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000025310EABC00 == 12 [pid = 6092] [id = {fc9ffbeb-d85e-4dce-a476-bc67d06e082d}] [url = about:blank]
[task 2020-06-18T21:15:03.038Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000025315DE3000 == 11 [pid = 6092] [id = {2e671e1b-85f2-422b-bc2b-fa1ace1686b4}] [url = about:blank]
[task 2020-06-18T21:15:03.083Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002530C9A8C00 == 10 [pid = 6092] [id = {decf70a0-eba2-4f87-912a-89a24fd39b51}] [url = about:blank]
[task 2020-06-18T21:15:03.084Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002530D7C7800 == 9 [pid = 6092] [id = {be5b2dcd-41e6-41c5-bb5e-c5f2f7db7e44}] [url = about:blank]
[task 2020-06-18T21:15:03.084Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 29 (00000253162A9000) [pid = 6092] [serial = 19] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.084Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 28 (000002530C9AC800) [pid = 6092] [serial = 23] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.084Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 27 (000002530D7C6000) [pid = 6092] [serial = 25] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.084Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002530EA15C00 == 8 [pid = 6092] [id = {9b8867e0-9cd4-49c4-926b-3fb4649993ea}] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000002531607C400 == 7 [pid = 6092] [id = {182c6a96-3788-4135-8838-043a7f7a8c9f}] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 26 (0000025310FA6000) [pid = 6092] [serial = 15] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 25 (0000025312F20000) [pid = 6092] [serial = 21] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 24 (0000025316310000) [pid = 6092] [serial = 17] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000025312F1CC00 == 6 [pid = 6092] [id = {bcd096fa-3804-4385-a133-57ca62d6f73e}] [url = about:blank]
[task 2020-06-18T21:15:03.085Z] 21:15:03     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000025316310400 == 5 [pid = 6092] [id = {a23cfe70-edb3-4fb8-a072-61ea4ea446d1}] [url = about:blank]
[task 2020-06-18T21:15:03.237Z] 21:15:03     INFO - GECKO(6656) | [Child 4648: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0000026E0CCAA400 == 0 [pid = 4648] [id = {bff223e5-b894-4842-85a8-2d329300170d}] [url = about:blank]
[task 2020-06-18T21:15:03.279Z] 21:15:03     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (0000021D48A74000) [pid = 3724] [serial = 11] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.279Z] 21:15:03     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (0000021D4809F400) [pid = 3724] [serial = 6] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.300Z] 21:15:03     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (0000021D41DA6600) [pid = 3724] [serial = 8] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.300Z] 21:15:03     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (0000021D41DA6090) [pid = 3724] [serial = 5] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:03.870Z] 21:15:03     INFO - GECKO(6656) | [Child 1072: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 00000221324A8400 == 0 [pid = 1072] [id = {a580170b-7211-473d-bc83-7947d2c89944}] [url = about:blank]
[task 2020-06-18T21:15:04.497Z] 21:15:04     INFO - GECKO(6656) | [Child 10200: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 000001F0BE9AA400 == 0 [pid = 10200] [id = {76ac19d0-6dd7-4ec8-8490-c96d2e8ae64c}] [url = about:blank]
[task 2020-06-18T21:15:05.599Z] 21:15:05     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (00000155FEA80C00) [pid = 5908] [serial = 12] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:05.599Z] 21:15:05     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (00000155FE6BBC00) [pid = 5908] [serial = 9] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:05.599Z] 21:15:05     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (00000155FE6B4C00) [pid = 5908] [serial = 7] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:05.637Z] 21:15:05     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (00000155FE621430) [pid = 5908] [serial = 8] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:05.882Z] 21:15:05     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (000001A37381D090) [pid = 1308] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 23 (000002530C9DE6A0) [pid = 6092] [serial = 1] [outer = 0000000000000000] [url = chrome://gfxsanity/content/sanityparent.html]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 22 (0000025316388350) [pid = 6092] [serial = 26] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 21 (0000025316385F10) [pid = 6092] [serial = 32] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 20 (0000025316386480) [pid = 6092] [serial = 33] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 19 (000002530C9DD2B0) [pid = 6092] [serial = 28] [outer = 0000000000000000] [url = about:preferences]
[task 2020-06-18T21:15:07.243Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 18 (00000253163874D0) [pid = 6092] [serial = 36] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.362Z] 21:15:07     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (0000021D48A76800) [pid = 3724] [serial = 7] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.362Z] 21:15:07     INFO - GECKO(6656) | [Child 3724: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (0000021D480AD400) [pid = 3724] [serial = 9] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 17 (000002530EBB0000) [pid = 6092] [serial = 27] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 16 (00000253162B4800) [pid = 6092] [serial = 31] [outer = 0000000000000000] [url = about:preferences]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 15 (0000025315DF0C00) [pid = 6092] [serial = 29] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (000002531607D800) [pid = 6092] [serial = 37] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (0000025317B30400) [pid = 6092] [serial = 34] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (0000025316080400) [pid = 6092] [serial = 35] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.440Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (000002530D7D1C00) [pid = 6092] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:07.441Z] 21:15:07     INFO - GECKO(6656) | [Parent 6092: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (00000253162B3800) [pid = 6092] [serial = 30] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:09.694Z] 21:15:09     INFO - GECKO(6656) | [Child 5908: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (00000155FEA89400) [pid = 5908] [serial = 10] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:09.938Z] 21:15:09     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (000001A37426CC00) [pid = 1308] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:10.964Z] 21:15:10     INFO - GECKO(6656) | [Child 5432: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (0000017039616090) [pid = 5432] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:12.900Z] 21:15:12     INFO - GECKO(6656) | [Child 6352: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (000001B166227090) [pid = 6352] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:13.171Z] 21:15:13     INFO - GECKO(6656) | [Child 4648: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (0000026E0CC29090) [pid = 4648] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:13.822Z] 21:15:13     INFO - GECKO(6656) | [Child 1072: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (0000022132427090) [pid = 1072] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:14.444Z] 21:15:14     INFO - GECKO(6656) | [Child 10200: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (000001F0BE929090) [pid = 10200] [serial = 1] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:15.012Z] 21:15:15     INFO - GECKO(6656) | [Child 5432: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (000001703A06E800) [pid = 5432] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:16.959Z] 21:15:16     INFO - GECKO(6656) | [Child 6352: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (000001B166C71800) [pid = 6352] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:17.224Z] 21:15:17     INFO - GECKO(6656) | [Child 4648: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (0000026E0D574800) [pid = 4648] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:17.873Z] 21:15:17     INFO - GECKO(6656) | [Child 1072: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (000002213336F800) [pid = 1072] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:15:18.503Z] 21:15:18     INFO - GECKO(6656) | [Child 10200: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (000001F0C3871800) [pid = 10200] [serial = 2] [outer = 0000000000000000] [url = about:blank]
[task 2020-06-18T21:16:27.649Z] 21:16:27     INFO - TEST-INFO | started process screenshot
[task 2020-06-18T21:16:27.727Z] 21:16:27     INFO - TEST-INFO | screenshot: exit 0
[task 2020-06-18T21:16:27.727Z] 21:16:27     INFO - Buffered messages logged at 21:14:57
[task 2020-06-18T21:16:27.727Z] 21:16:27     INFO - Entering test bound test_PanelMultiView_toggle_with_other_popup
[task 2020-06-18T21:16:27.728Z] 21:16:27     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: "data:text/html,<html><body></body></html>" line: 0}]
[task 2020-06-18T21:16:27.728Z] 21:16:27     INFO - Buffered messages logged at 21:14:58
[task 2020-06-18T21:16:27.729Z] 21:16:27     INFO - TEST-PASS | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | The panel is closed to begin with. - "closed" == "closed" - 
[task 2020-06-18T21:16:27.730Z] 21:16:27     INFO - Console message: [JavaScript Warning: "Key event not available on some keyboard layouts: key=“i” modifiers=“accel,alt,shift” id=“key_browserToolbox”" {file: "chrome://mochikit/content/tests/SimpleTest/EventUtils.js" line: 1099}]
[task 2020-06-18T21:16:27.730Z] 21:16:27     INFO - Buffered messages logged at 21:14:59
[task 2020-06-18T21:16:27.730Z] 21:16:27     INFO - TEST-PASS | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | The panel is open to begin with. - true == true - 
[task 2020-06-18T21:16:27.730Z] 21:16:27     INFO - TEST-PASS | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | The panel is closed to begin with. - "closed" == "closed" - 
[task 2020-06-18T21:16:27.730Z] 21:16:27     INFO - Buffered messages finished
[task 2020-06-18T21:16:27.731Z] 21:16:27     INFO - TEST-UNEXPECTED-FAIL | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | Test timed out - 
[task 2020-06-18T21:16:27.769Z] 21:16:27     INFO - GECKO(6656) | MEMORY STAT | vsize 2104424MB | vsizeMaxContiguous 65413006MB | residentFast 379MB | heapAllocated 98MB
[task 2020-06-18T21:16:27.769Z] 21:16:27     INFO - TEST-OK | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | took 90145ms
[task 2020-06-18T21:16:27.769Z] 21:16:27     INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-06-18T21:16:27.769Z] 21:16:27     INFO - TEST-UNEXPECTED-FAIL | browser/components/customizableui/test/browser_1484275_PanelMultiView_toggle_with_other_popup.js | Found a tab after previous test timed out: data:text/html,<html><body></body></html> - 
[task 2020-06-18T21:16:27.809Z] 21:16:27     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 000001A373896400 == 1 [pid = 1308] [id = {f0af5605-5972-4198-8d72-fdfef71bfab2}]
[task 2020-06-18T21:16:27.809Z] 21:16:27     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 1 (000001A374283090) [pid = 1308] [serial = 3] [outer = 0000000000000000]
[task 2020-06-18T21:16:27.809Z] 21:16:27     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 2 (000001A37426CC00) [pid = 1308] [serial = 4] [outer = 000001A374283090]
[task 2020-06-18T21:16:27.834Z] 21:16:27     INFO - GECKO(6656) | [Child 1308: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (000001A37426DC00) [pid = 1308] [serial = 5] [outer = 000001A374283090]
[task 2020-06-18T21:16:27.844Z] 21:16:27     INFO - checking window state
[task 2020-06-18T21:16:27.875Z] 21:16:27     INFO - GECKO(6656) | [Parent 6092, Main Thread] WARNING: NS_ENSURE_TRUE(GetWrapper()) failed: file /builds/worker/checkouts/gecko/dom/ipc/JSActor.cpp, line 90
[task 2020-06-18T21:16:27.893Z] 21:16:27     INFO - TEST-START | browser/components/customizableui/test/browser_694291_searchbar_preference.js
```