1374133 - Intermittent /html/browsers/windows/browsing-context-names/choose-_blank-003.html | Unable to locate window: 4294967297

Status: RESOLVED INCOMPLETE

(Testing :: web-platform-tests, defect)

Description

[Treeherder Bug Filer]

Filed by: philringnalda [at] gmail.com

https://treeherder.mozilla.org/logviewer.html#?job_id=107614912&repo=mozilla-central

https://queue.taskcluster.net/v1/task/HOvLBCjCSESASuRGZgh7XA/runs/0/artifacts/public/logs/live_backing.log

Comment 1

[Joel Maher ( :jmaher ) (UTC -8)]

32 failures this week:
https://brasstacks.mozilla.com/orangefactor/index.html?display=Bug&bugid=1374133&startday=2017-06-16&endday=2017-06-23&tree=trunk

mostly on linux, some osx- many configurations.

here is a recent linux64 debug failure log:
https://treeherder.mozilla.org/logviewer.html#?repo=mozilla-inbound&job_id=109644696&lineNumber=6169

and related data from the log:
[task 2017-06-23T19:37:14.382772Z] 19:37:14     INFO - TEST-START | /html/browsers/windows/browsing-context-names/choose-_blank-003.html
[task 2017-06-23T19:37:14.561454Z] 19:37:14     INFO - TEST-UNEXPECTED-ERROR | /html/browsers/windows/browsing-context-names/choose-_blank-003.html | Unable to locate window: 4294967297
[task 2017-06-23T19:37:14.562709Z] 19:37:14     INFO - stacktrace:
[task 2017-06-23T19:37:14.562756Z] 19:37:14     INFO - 	WebDriverError@chrome://marionette/content/error.js:222:5
[task 2017-06-23T19:37:14.562821Z] 19:37:14     INFO - 	NoSuchWindowError@chrome://marionette/content/error.js:444:5
[task 2017-06-23T19:37:14.562872Z] 19:37:14     INFO - 	GeckoDriver.prototype.switchToWindow@chrome://marionette/content/driver.js:1440:11
[task 2017-06-23T19:37:14.562905Z] 19:37:14     INFO - 	TaskImpl_run@resource://gre/modules/Task.jsm:331:42
[task 2017-06-23T19:37:14.563262Z] 19:37:14     INFO - 	TaskImpl@resource://gre/modules/Task.jsm:280:3
[task 2017-06-23T19:37:14.563672Z] 19:37:14     INFO - 	asyncFunction@resource://gre/modules/Task.jsm:252:14
[task 2017-06-23T19:37:14.564055Z] 19:37:14     INFO - 	Task_spawn@resource://gre/modules/Task.jsm:166:12
[task 2017-06-23T19:37:14.564352Z] 19:37:14     INFO - 	TaskImpl_handleResultValue@resource://gre/modules/Task.jsm:401:16
[task 2017-06-23T19:37:14.564679Z] 19:37:14     INFO - 	TaskImpl_run@resource://gre/modules/Task.jsm:339:15
[task 2017-06-23T19:37:14.564948Z] 19:37:14     INFO - 	TaskImpl@resource://gre/modules/Task.jsm:280:3
[task 2017-06-23T19:37:14.565222Z] 19:37:14     INFO - 	asyncFunction@resource://gre/modules/Task.jsm:252:14
[task 2017-06-23T19:37:14.565514Z] 19:37:14     INFO - 	Task_spawn@resource://gre/modules/Task.jsm:166:12
[task 2017-06-23T19:37:14.565781Z] 19:37:14     INFO - 	execute@chrome://marionette/content/server.js:510:15
[task 2017-06-23T19:37:14.566042Z] 19:37:14     INFO - 	onPacket@chrome://marionette/content/server.js:481:7
[task 2017-06-23T19:37:14.566385Z] 19:37:14     INFO - 	_onJSONObjectReady/<@chrome://marionette/content/transport.js:480:9
[task 2017-06-23T19:37:14.566582Z] 19:37:14     INFO - TEST-INFO took 178ms
[task 2017-06-23T19:37:14.591257Z] 19:37:14     INFO - PID 3125 | 1498246634586	Marionette	INFO	New connections will no longer be accepted
[task
 2017-06-23T19:37:14.592758Z] 19:37:14     INFO - PID 3125 | [Parent 3125] WARNING: NS_ENSURE_TRUE(weak) failed: file /home/worker/workspace/build/src/dom/base/nsFrameMessageManager.cpp, line 343
[task 2017-06-23T19:37:14.924872Z] 19:37:14     INFO - PID 3125 | [Parent 3125] WARNING: NS_ENSURE_TRUE(weak) failed: file /home/worker/workspace/build/src/dom/base/nsFrameMessageManager.cpp, line 343
[task 2017-06-23T19:37:14.963479Z] 19:37:14     INFO - PID 3125 | 



not much to go from in the log.

looking on github, I see an author (not in bugzilla?), but not a reviewer:
https://github.com/w3c/web-platform-tests/commit/afa8f8edb0711f010df59c209c31521b482b38aa

there is no bugzilla component associated with this test, I am not sure what spec this is implementing, we need to figure that out.

in addition, there are 2 other intermittent bugs for this test case, bug 1373511 (many instances as well) and bug 1295436 (old bug no new instances).

:jgraham, can you find the right component for these tests so we can get the proper team to work on these tests?

Comment 2

[Intermittent Failures Robot]

31 failures in 892 pushes (0.035 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* mozilla-inbound: 14
* autoland: 12
* mozilla-central: 3
* try: 2

Platform breakdown:
* linux64: 11
* osx-10-10: 8
* linux64-stylo: 6
* linux32: 6

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-06-19&endday=2017-06-25&tree=all

Comment 3

[James Graham [:jgraham]]

Pretty sure what's happening here is either a bug in the harness or a bug in marionette. It's failing to close a window that it thinks exists, which suggests that either the window handles changed, or the window got closed by the test before the harness.

Comment 4

[James Graham [:jgraham]]

So the relevant harness code is:

    def close_old_windows(self, protocol):
        handles = self.marionette.window_handles
        runner_handle = None
        try:
            handles.remove(self.runner_handle)
            runner_handle = self.runner_handle
        except ValueError:
            # The runner window probably changed id but we can restore it
            # This isn't supposed to happen, but marionette ids are not yet stable
            # We assume that the first handle returned corresponds to the runner,
            # but it hopefully doesn't matter too much if that assumption is
            # wrong since we reload the runner in that tab anyway.
            runner_handle = handles.pop(0)

        for handle in handles:
            self.marionette.switch_to_window(handle)
            self.marionette.close()

        self.marionette.switch_to_window(runner_handle)
        if runner_handle != self.runner_handle:
            self.load_runner(protocol)

So we try to close all windows except the window we first had open (self.runner_handle), but if that doesn't exist we leave one window open. In either case runner_handle should be a valid window reference at the start of the loop. The fact that it isn't by the end could be that the test is closing that window, but it certainly ought not to be. Or it could be that marionette is changing the window handles for some reason. WHimboo: any ideas? I can add extra logging here of couse.

Comment 5

[Henrik Skupin [:whimboo][⌚️UTC+2]]

I would suggest that you are using a try build to generate a trace log, or do it yourself. It's hard to tell what's wrong here, and a tracelog would give us the information immediately.

Comment 6

[Intermittent Failures Robot]

47 failures in 718 pushes (0.065 failures/push) were associated with this bug in the last 7 days. 

This is the #30 most frequent failure this week.  

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 26
* mozilla-inbound: 16
* try: 4
* mozilla-central: 1

Platform breakdown:
* linux64: 33
* osx-10-10: 6
* linux32: 5
* linux64-stylo: 3

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-06-26&endday=2017-07-02&tree=all

Comment 7

[Intermittent Failures Robot]

38 failures in 656 pushes (0.058 failures/push) were associated with this bug in the last 7 days. 

This is the #42 most frequent failure this week.  

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* mozilla-inbound: 14
* autoland: 11
* try: 6
* mozilla-central: 3
* oak: 2
* cedar: 2

Platform breakdown:
* linux64: 14
* osx-cross: 13
* linux32: 5
* linux64-stylo: 3
* osx-10-10: 2
* macosx64-nightly: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-07-03&endday=2017-07-09&tree=all

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/482bb010dbf4
Skip wpt choose-_blank-003.html for intermittent failures; r=me,test-only

Comment 9

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/482bb010dbf4

Comment 10

[Intermittent Failures Robot]

37 failures in 720 pushes (0.051 failures/push) were associated with this bug in the last 7 days. 

This is the #36 most frequent failure this week.  

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 17
* mozilla-inbound: 10
* try: 5
* mozilla-central: 3
* oak: 1
* cedar: 1

Platform breakdown:
* linux64: 14
* osx-cross: 12
* osx-10-10: 4
* linux64-stylo: 3
* linux32: 3
* windows7-32-vm: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-07-10&endday=2017-07-16&tree=all

Comment 11

[Intermittent Failures Robot]

22 failures in 822 pushes (0.027 failures/push) were associated with this bug in the last 7 days.   

Repository breakdown:
* autoland: 14
* try: 4
* mozilla-inbound: 2
* mozilla-central: 2

Platform breakdown:
* osx-10-10: 10
* linux64-stylo: 5
* linux64: 3
* linux32: 2
* windows7-32: 1
* macosx64-nightly: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-07-17&endday=2017-07-23&tree=all

Comment 12

[Intermittent Failures Robot]

38 failures in 1008 pushes (0.038 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* mozilla-inbound: 18
* autoland: 15
* try: 3
* mozilla-central: 2

Platform breakdown:
* osx-10-10: 14
* linux64-stylo: 8
* linux32: 7
* linux64: 5
* macosx64-stylo: 4

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-07-24&endday=2017-07-30&tree=all

Comment 13

[Intermittent Failures Robot]

40 failures in 888 pushes (0.045 failures/push) were associated with this bug in the last 7 days. 

This is the #43 most frequent failure this week.  

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 23
* mozilla-inbound: 11
* mozilla-central: 3
* try: 2
* oak: 1

Platform breakdown:
* macosx64-stylo: 17
* osx-10-10: 10
* linux32: 5
* linux64-stylo: 4
* linux64: 4

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-07-31&endday=2017-08-06&tree=all

Comment 14

[Intermittent Failures Robot]

30 failures in 901 pushes (0.033 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 11
* mozilla-beta: 6
* mozilla-central: 5
* try: 4
* mozilla-inbound: 4

Platform breakdown:
* macosx64-stylo: 12
* osx-10-10: 9
* macosx64-devedition: 6
* linux64-stylo: 2
* linux32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-08-07&endday=2017-08-13&tree=all

Comment 15

[Intermittent Failures Robot]

30 failures in 949 pushes (0.032 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 12
* mozilla-central: 9
* mozilla-inbound: 6
* try: 3

Platform breakdown:
* osx-10-10: 14
* macosx64-stylo: 8
* linux64-stylo: 3
* linux32: 3
* macosx64-devedition: 1
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-08-14&endday=2017-08-20&tree=all

Comment 16

[Joel Maher ( :jmaher ) (UTC -8)]

somehow this disappeared!  I need to reland this and I wish that when we deleted this file it was updated in this bug

Comment 17

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/f139e3a8bb15
Skip wpt choose-_blank-003.html for intermittent failures; r=me,test-only

Comment 18

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-beta/rev/d34f45fcc741

Comment 19

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/f139e3a8bb15

Comment 20

[Intermittent Failures Robot]

20 failures in 908 pushes (0.022 failures/push) were associated with this bug in the last 7 days.   

Repository breakdown:
* autoland: 8
* try: 4
* mozilla-central: 4
* mozilla-inbound: 2
* mozilla-beta: 2

Platform breakdown:
* macosx64-stylo: 6
* osx-10-10: 5
* linux64: 3
* macosx64-devedition: 1
* linux64-stylo: 1
* linux64-devedition: 1
* linux32-stylo: 1
* linux32-nightly: 1
* linux32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-08-21&endday=2017-08-27&tree=all

Comment 21

[Henrik Skupin [:whimboo][⌚️UTC+2]]

So this test got disabled? How can it still produce test failures?

Comment 22

[Joel Maher ( :jmaher ) (UTC -8)]

I really don't understand why this test is running :(

:jgraham, do you see anything wrong with https://hg.mozilla.org/mozilla-central/rev/f139e3a8bb15 ?

Comment 23

[James Graham [:jgraham]]

Yes, you put .ini in the [] part so it isn't applied since the names don't match.

In any case it might be worth seeing what happens when bug 1373444 is fixed because that will either fix this or at least make the underlying cause more obvious. Since this isn't a top-100 intermittent it doesn't seem too harmful to wait a while.

Comment 24

[Joel Maher ( :jmaher ) (UTC -8)]

thanks for spotting the error!  we will see how this works out after bug 1373444 is fixed.

Comment 25

[Intermittent Failures Robot]

37 failures in 939 pushes (0.039 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 19
* mozilla-inbound: 6
* try: 5
* mozilla-central: 5
* mozilla-beta: 2

Platform breakdown:
* macosx64-stylo: 9
* osx-10-10: 7
* linux32-stylo: 6
* linux32: 6
* macosx64-devedition: 3
* linux64-stylo: 3
* linux64: 3

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-08-28&endday=2017-09-03&tree=all

Comment 26

[Henrik Skupin [:whimboo][⌚️UTC+2]]

(In reply to Joel Maher ( :jmaher) (UTC-5) from comment #24)
> thanks for spotting the error!  we will see how this works out after bug
> 1373444 is fixed.

Joel, the dependency has been fixed now. Can you check if we can re-enable this test?

Comment 27

[Joel Maher ( :jmaher ) (UTC -8)]

we technically do not have this disabled as I did not annotate the .ini file properly- I see many references to this test failing this morning- so it looks as though bug 1373444 didn't fix the issue.

:whimboo, is there another pending fix, or should we disable this?

Comment 28

[Henrik Skupin [:whimboo][⌚️UTC+2]]

It would be nice to have tracing output for Marionette to actually see what's going on but that's not available. So I don't have the time to dig into web-platform-tests, but James has way more expertise and could have a look. Maybe it's somewhat similar to the issue on bug 1373444.

Comment 29

[Intermittent Failures Robot]

50 failures in 924 pushes (0.054 failures/push) were associated with this bug in the last 7 days. 

This is the #50 most frequent failure this week.  

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. ** 

Repository breakdown:
* autoland: 23
* try: 9
* mozilla-inbound: 9
* mozilla-central: 7
* mozilla-beta: 2

Platform breakdown:
* osx-10-10: 12
* macosx64-stylo-disabled: 11
* linux64: 6
* linux32: 5
* macosx64-stylo: 3
* linux64-stylo-disabled: 3
* linux32-stylo-disabled: 3
* macosx64-nightly: 2
* macosx64-devedition: 2
* linux32-stylo: 2
* linux64-stylo: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-04&endday=2017-09-10&tree=all

Comment 30

[Intermittent Failures Robot]

52 failures in 1032 pushes (0.05 failures/push) were associated with this bug in the last 7 days.   

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **  

Repository breakdown:
* autoland: 24
* mozilla-central: 14
* mozilla-inbound: 8
* try: 5
* mozilla-beta: 1

Platform breakdown:
* osx-10-10: 23
* macosx64-stylo-disabled: 11
* linux32: 6
* linux64-stylo-disabled: 5
* linux64: 3
* linux32-stylo-disabled: 2
* macosx64-stylo: 1
* macosx64-devedition: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-11&endday=2017-09-17&tree=all

Comment 31

[Intermittent Failures Robot]

17 failures in 175 pushes (0.097 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* autoland: 11
* mozilla-inbound: 5
* mozilla-central: 1

Platform breakdown:
* osx-10-10: 5
* macosx64-stylo-disabled: 4
* linux64: 3
* linux64-stylo-disabled: 2
* linux32: 2
* linux32-stylo-disabled: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-19&endday=2017-09-19&tree=all

Comment 32

[Intermittent Failures Robot]

15 failures in 190 pushes (0.079 failures/push) were associated with this bug yesterday.    

** This test has failed more than 200 times in the last 30 days. It should be disabled until it can be fixed. ** 

Repository breakdown:
* autoland: 9
* mozilla-inbound: 3
* mozilla-central: 2
* try: 1

Platform breakdown:
* linux64: 4
* osx-10-10: 3
* macosx64-stylo-disabled: 3
* linux64-stylo-disabled: 2
* linux32-stylo-disabled: 2
* linux32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-20&endday=2017-09-20&tree=all

Comment 33

[Intermittent Failures Robot]

15 failures in 199 pushes (0.075 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* mozilla-inbound: 5
* mozilla-central: 4
* autoland: 3
* mozilla-beta: 2
* try: 1

Platform breakdown:
* osx-10-10: 5
* macosx64-stylo-disabled: 4
* macosx64-devedition: 2
* linux64: 2
* linux64-stylo-disabled: 1
* linux32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-21&endday=2017-09-21&tree=all

Comment 34

[Intermittent Failures Robot]

15 failures in 139 pushes (0.108 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* mozilla-inbound: 5
* autoland: 5
* mozilla-central: 4
* mozilla-beta: 1

Platform breakdown:
* macosx64-stylo-disabled: 6
* osx-10-10: 4
* linux32-stylo-disabled: 4
* macosx64-devedition: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-22&endday=2017-09-22&tree=all

Comment 35

[Intermittent Failures Robot]

109 failures in 943 pushes (0.116 failures/push) were associated with this bug in the last 7 days. 

This is the #13 most frequent failure this week. 

** This failure happened more than 75 times this week! Resolving this bug is a very high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled. **   

Repository breakdown:
* autoland: 51
* mozilla-inbound: 28
* mozilla-central: 24
* try: 3
* mozilla-beta: 2
* oak: 1

Platform breakdown:
* macosx64-stylo-disabled: 31
* osx-10-10: 25
* linux64: 20
* linux32-stylo-disabled: 17
* linux64-stylo-disabled: 9
* linux32: 5
* macosx64-devedition: 2

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-18&endday=2017-09-24&tree=all

Comment 36

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/a3ce51c3168a
Disable /html/browsers/windows/browsing-context-names/choose-_blank-003.html for frequent failures. r=me, a=test-only

Comment 37

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/a3ce51c3168a

Comment 38

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-beta/rev/eb405675a961

Comment 39

[Intermittent Failures Robot]

25 failures in 885 pushes (0.028 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* try: 8
* autoland: 8
* mozilla-central: 4
* mozilla-beta: 3
* mozilla-inbound: 2

Platform breakdown:
* linux64: 7
* linux64-stylo-disabled: 5
* linux32-stylo-disabled: 5
* osx-10-10: 3
* macosx64-devedition: 3
* macosx64-stylo-disabled: 2

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1374133&startday=2017-09-25&endday=2017-10-01&tree=all

Comment 40

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.