1655570 - Intermittent bidi/503269-1.html == bidi/503269-1-ref.html | image comparison, max difference: 78, number of differing pixels: 261

Status: RESOLVED INCOMPLETE

(Core :: Layout: Text and Fonts, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: nbeleuzu [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=311173675&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/EmJGHBYmTE6KWcZ2Od16Pg/runs/0/artifacts/public/logs/live_backing.log
Reftest URL: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/EmJGHBYmTE6KWcZ2Od16Pg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---

[task 2020-07-27T19:55:31.995Z] 19:55:31 INFO - REFTEST TEST-START | layout/reftests/bidi/503269-1.html == layout/reftests/bidi/503269-1-ref.html
[task 2020-07-27T19:55:31.996Z] 19:55:31 INFO - REFTEST TEST-LOAD | file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/bidi/503269-1.html | 92 / 177 (51%)
[task 2020-07-27T19:55:32.131Z] 19:55:32 INFO - REFTEST TEST-LOAD | file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/bidi/503269-1-ref.html | 92 / 177 (51%)
[task 2020-07-27T19:55:32.499Z] 19:55:32 INFO - REFTEST TEST-UNEXPECTED-FAIL | layout/reftests/bidi/503269-1.html == layout/reftests/bidi/503269-1-ref.html | image comparison, max difference: 78, number of differing pixels: 261
[task 2020-07-27T19:55:32.499Z] 19:55:32 INFO - REFTEST IMAGE 1 (TEST): data:image/png;base64,
[task 2020-07-27T19:55:32.501Z] 19:55:32 INFO - REFTEST IMAGE 2 (REFERENCE): data:image/png;base64,
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: START file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/bidi/503269-1.html
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2020-07-27T19:55:32.502Z] 19:55:32 INFO - REFTEST INFO | Saved log: START file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/bidi/503269-1-ref.html
[task 2020-07-27T19:55:32.504Z] 19:55:32 INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2020-07-27T19:55:32.505Z] 19:55:32 INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-07-27T19:55:32.506Z] 19:55:32 INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-07-27T19:55:32.507Z] 19:55:32 INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-07-27T19:55:32.508Z] 19:55:32 INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2020-07-27T19:55:32.509Z] 19:55:32 INFO - REFTEST TEST-END | layout/reftests/bidi/503269-1.html == layout/reftests/bidi/503269-1-ref.html

Comment 1

[Intermittent Failures Robot]

1 failures in 4289 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-07-27&endday=2020-08-02&tree=all

Comment 2

[Intermittent Failures Robot]

1 failures in 4618 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-08-03&endday=2020-08-09&tree=all

Comment 3

[BugBot [:suhaib / :marco]]

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

Comment 4

[Bogdan Tara[:bogdan_tara | bogdant]]

This is still happening.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=314939223&repo=mozilla-beta&lineNumber=9680

Comment 5

[Intermittent Failures Robot]

2 failures in 2984 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-beta: 1

Platform breakdown:

• linux1804-64-qr: 1
• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-08-31&endday=2020-09-06&tree=all

Comment 6

[Intermittent Failures Robot]

1 failures in 3760 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-09-14&endday=2020-09-20&tree=all

Comment 7

[BugBot [:suhaib / :marco]]

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

Comment 8

[Bogdan Tara[:bogdan_tara | bogdant]]

This is still happening.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=318523632&repo=autoland&lineNumber=8587

Comment 9

[Intermittent Failures Robot]

1 failures in 3694 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-10-12&endday=2020-10-18&tree=all

Comment 10

[Intermittent Failures Robot]

1 failures in 4275 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1655570&startday=2020-10-26&endday=2020-11-01&tree=all

Comment 11

[Intermittent Failures Robot]

3 failures in 4810 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 2
• autoland: 1

Platform breakdown:

• linux1804-64-qr: 2
• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-11-16&endday=2020-11-22&tree=all

Comment 12

[Intermittent Failures Robot]

1 failures in 1479 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Platform breakdown:

• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-11-23&endday=2020-11-29&tree=all

Comment 13

[Intermittent Failures Robot]

2 failures in 3712 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform breakdown:

• linux1804-64-shippable-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-11-30&endday=2020-12-06&tree=all

Comment 14

[Intermittent Failures Robot]

4 failures in 4060 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• try: 2
• autoland: 1

Platform breakdown:

• linux1804-64-shippable-qr: 3
• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-12-07&endday=2020-12-13&tree=all

Comment 15

[Intermittent Failures Robot]

4 failures in 3421 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-central: 1
• try: 1

Platform breakdown:

• linux1804-64-qr: 2
• linux1804-64-asan-qr: 1
• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-12-14&endday=2020-12-20&tree=all

Comment 16

[Intermittent Failures Robot]

7 failures in 1450 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3
• autoland: 4

Platform breakdown:

• linux1804-64-shippable-qr: 3
• linux1804-64-qr: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-12-21&endday=2020-12-27&tree=all

Comment 17

[Intermittent Failures Robot]

1 failures in 525 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux1804-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2020-12-28&endday=2021-01-03&tree=all

Comment 18

[Intermittent Failures Robot]

6 failures in 2956 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• autoland: 2
• mozilla-beta: 1
• mozilla-central: 2

Platform breakdown:

• linux1804-64-shippable-qr: 4
• linux1804-64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-01-04&endday=2021-01-10&tree=all

Comment 19

[Intermittent Failures Robot]

7 failures in 3810 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• mozilla-central: 3
• mozilla-beta: 2
• autoland: 1

Platform breakdown:

• linux1804-64-shippable-qr: 6
• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-01-11&endday=2021-01-17&tree=all

Comment 20

[Intermittent Failures Robot]

9 failures in 3488 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 3
• mozilla-central: 5
• try: 1

Platform and build breakdown:

• linux1804-64-qr: 3
  • opt: 3
• linux1804-64-shippable-qr: 6
  • opt: 6

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-01-18&endday=2021-01-24&tree=all

Comment 21

[Intermittent Failures Robot]

8 failures in 3891 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 4
• mozilla-beta: 2
• try: 1
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-qr: 4
  • opt: 4
• linux1804-64-shippable-qr: 4
  • opt: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-01-25&endday=2021-01-31&tree=all

Comment 22

[Intermittent Failures Robot]

10 failures in 3966 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 5
• mozilla-central: 2
• try: 2
• mozilla-beta: 1

Platform and build breakdown:

• linux1804-64-qr: 5
  • opt: 5
• linux1804-64-shippable-qr: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-02-01&endday=2021-02-07&tree=all

Comment 23

[Intermittent Failures Robot]

6 failures in 4322 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• try: 2
• mozilla-central: 2
• mozilla-beta: 1

Platform and build breakdown:

• linux1804-64-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-02-08&endday=2021-02-14&tree=all

Comment 24

[Intermittent Failures Robot]

13 failures in 3737 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• mozilla-central: 4
• try: 2
• mozilla-release: 1

Platform and build breakdown:

• linux1804-64-qr: 6
  • opt: 6
• linux1804-64-shippable-qr: 7
  • opt: 7

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-02-15&endday=2021-02-21&tree=all

Comment 25

[Intermittent Failures Robot]

17 failures in 4327 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• mozilla-beta: 6
• mozilla-central: 5

Platform and build breakdown:

• linux1804-64-qr: 6
  • opt: 6
• linux1804-64-shippable-qr: 10
  • opt: 10
• linux1804-64-asan-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-02-22&endday=2021-02-28&tree=all

Comment 26

[Intermittent Failures Robot]

9 failures in 3683 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2
• mozilla-central: 4
• autoland: 2
• try: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 7
  • opt: 7
• linux1804-64-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-03-01&endday=2021-03-07&tree=all

Comment 27

[Intermittent Failures Robot]

10 failures in 4622 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• autoland: 3
• mozilla-beta: 2
• mozilla-central: 3
• try: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 7
  • opt: 7
• linux1804-64-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-03-08&endday=2021-03-14&tree=all

Comment 28

[Intermittent Failures Robot]

11 failures in 4257 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• autoland: 6
• mozilla-central: 2
• try: 2

Platform and build breakdown:

• linux1804-64-shippable-qr: 5
  • opt: 5
• linux1804-64-qr: 6
  • opt: 6

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-03-15&endday=2021-03-21&tree=all

Comment 29

[Intermittent Failures Robot]

7 failures in 3967 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-beta: 4
• try: 1

Platform and build breakdown:

• linux1804-64-qr: 2
  • opt: 2
• linux1804-64-shippable-qr: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-03-22&endday=2021-03-28&tree=all

Comment 30

[Intermittent Failures Robot]

8 failures in 3125 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3
• try: 1
• autoland: 4

Platform and build breakdown:

• linux1804-64-shippable-qr: 4
  • opt: 4
• linux1804-64-qr: 4
  • opt: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-03-29&endday=2021-04-04&tree=all

Comment 31

[Intermittent Failures Robot]

4 failures in 3854 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1
• autoland: 1
• try: 1
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 3
  • opt: 3
• linux1804-64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-04-05&endday=2021-04-11&tree=all

Comment 32

[Intermittent Failures Robot]

3 failures in 4255 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• mozilla-central: 1
• try: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-04-12&endday=2021-04-18&tree=all

Comment 33

[Intermittent Failures Robot]

4 failures in 3224 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-central: 1
• try: 1

Platform and build breakdown:

• linux1804-64-qr: 2
  • opt: 2
• linux1804-64-shippable-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-04-19&endday=2021-04-25&tree=all

Comment 34

[Intermittent Failures Robot]

8 failures in 3706 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• try: 1
• mozilla-beta: 5
• autoland: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 7
  • opt: 7
• linux1804-64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-04-26&endday=2021-05-02&tree=all

Comment 35

[Intermittent Failures Robot]

7 failures in 3279 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-beta: 4
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-qr: 2
  • opt: 2
• linux1804-64-shippable-qr: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-05-03&endday=2021-05-09&tree=all

Comment 36

[Intermittent Failures Robot]

7 failures in 3061 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3
• mozilla-beta: 2
• try: 1
• autoland: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 6
  • opt: 6
• linux1804-64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-05-17&endday=2021-05-23&tree=all

Comment 37

[Intermittent Failures Robot]

4 failures in 2908 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 3

Platform and build breakdown:

• linux1804-64-shippable-qr: 1
  • opt: 1
• linux1804-64-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-05-24&endday=2021-05-30&tree=all

Comment 38

[Intermittent Failures Robot]

13 failures in 3065 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 8
• mozilla-central: 2
• mozilla-beta: 2
• try: 1

Platform and build breakdown:

• linux1804-64-qr: 8
  • opt: 8
• linux1804-64-shippable-qr: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-05-31&endday=2021-06-06&tree=all

Comment 39

[Intermittent Failures Robot]

2 failures in 3502 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-beta: 1

Platform and build breakdown:

• linux1804-64-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-06-07&endday=2021-06-13&tree=all

Comment 40

[Intermittent Failures Robot]

2 failures in 2888 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform and build breakdown:

• linux1804-64-shippable-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-06-14&endday=2021-06-20&tree=all

Comment 41

[Intermittent Failures Robot]

3 failures in 2387 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 3

Platform and build breakdown:

• linux1804-64-shippable-qr: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-07-05&endday=2021-07-11&tree=all

Comment 42

[Intermittent Failures Robot]

1 failures in 2224 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-07-12&endday=2021-07-18&tree=all

Comment 43

[Intermittent Failures Robot]

1 failures in 3131 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1655570&startday=2021-07-26&endday=2021-08-01&tree=all

Comment 44

[BugBot [:suhaib / :marco]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
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