WebKit export of https://bugs.webkit.org/show_bug.cgi?id=319406 - #62140
Merged
Community-TC Integration / wpt-firefox-nightly-stability
succeeded
Aug 22, 2026 in 4m 12s
Community-TC (pull_request)
Verify that all tests affected by a pull request are stable when executed in firefox.
Details
View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster
Task Status
Started: 2026-08-22T05:13:54.385Z
Resolved: 2026-08-22T05:18:06.550Z
Task Execution Time: 4 minutes, 12 seconds, 165 milliseconds
Task Status: completed
Reason Resolved: completed
TaskId: XLS8GhsjRU6jW2XYBOT1Lw
RunId: 0
Artifacts
- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
WPT Command: python3 ./wpt run --channel=nightly --verify --verify-no-chaos-mode --verify-repeat-loop=0 --verify-repeat-restart=10 --github-checks-text-file=/home/test/artifacts/checkrun.md --affected base_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --verify-log-full --no-headless --binary=/home/test/build/firefox/firefox firefox
[taskcluster 2026-08-22 05:13:54.445Z] Task ID: XLS8GhsjRU6jW2XYBOT1Lw
[taskcluster 2026-08-22 05:13:54.445Z] Worker ID: 3422932712793919007
[taskcluster 2026-08-22 05:13:54.445Z] Worker Group: us-central1-f
[taskcluster 2026-08-22 05:13:54.445Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-08-22 05:13:54.445Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-08-22 05:13:54.445Z] Worker Version: 46.1.0
[taskcluster 2026-08-22 05:13:54.445Z] Public IP: 136.64.124.157
[taskcluster 2026-08-22 05:13:54.445Z] Hostname: proj-wpt-ci-g88pmjwwqvg2szvj00s-ha
[taskcluster 2026-08-22 05:13:55.505Z] === Task Starting ===
+ '[' '' ']'
+ '[' -d /etc/profile.d ']'
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/01-locale-fix.sh ']'
+ . /etc/profile.d/01-locale-fix.sh
+++ /usr/bin/locale-check C.UTF-8
++ eval
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/apps-bin-path.sh ']'
+ . /etc/profile.d/apps-bin-path.sh
...(609 lines hidden)...
pid:3640 [3640] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
1:18.11 pid:3640 1787375865706 Marionette INFO Marionette enabled
1:18.24 pid:3640 1787375865836 Marionette INFO Listening on port 53141
1:19.61 pid:3640 console.error: services.settings:
1:19.61 pid:3640 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
1:19.61 pid:3640 Stack:
1:19.61 pid:3640 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
1:19.61 pid:3640 list@resource://services-settings/Database.sys.mjs:96:13
1:20.08 TEST_START: /css/css-grid/grid-overflowing-item-content-is-painted.html
1:20.13 pid:3640 1787375867725 Marionette INFO Testing http://web-platform.test:8000/css/css-grid/grid-overflowing-item-content-is-painted.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
1:20.34 pid:3640 1787375867930 Marionette INFO No differences allowed
1:20.34 TEST_END: PASS
1:20.34 INFO No more tests
1:20.39 pid:3640 1787375867981 Marionette INFO Stopped listening on port 53141
mem avail: 13838 of 15806 MiB (87.55%), swap free: 0 of 0 MiB ( 0.00%)
1:20.89 INFO Browser exited with return code 0
1:20.71 INFO Closing logging queue
1:20.71 INFO queue closed
1:20.91 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 6 checks (6 tests)
Expected results: 6
Unexpected results: 0
OK
1:20.91 INFO Got 0 unexpected results, with 0 unexpected passes
1:20.91 INFO Repetition 7 / 10
1:20.91 SUITE_START: web-platform-test - running 1 tests
1:20.91 INFO Using 1 child processes
1:20.92 INFO Setting up ssl
1:20.94 certutil b''
1:20.96 certutil b''
1:20.96 certutil b'\nCertificate Nickname Trust Attributes\n SSL,S/MIME,JAR/XPI\n\nweb-platform-tests CT,, \n'
1:20.96 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmpyxm45o3m
1:20.98 INFO Starting runner
1:20.98 pid:3951 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:3951 [3951] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
1:21.48 pid:3951 1787375869069 Marionette INFO Marionette enabled
1:21.58 pid:3951 1787375869176 Marionette INFO Listening on port 45343
1:22.77 pid:3951 console.error: services.settings:
1:22.77 pid:3951 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
1:22.77 pid:3951 Stack:
1:22.77 pid:3951 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
1:22.77 pid:3951 list@resource://services-settings/Database.sys.mjs:96:13
1:23.24 TEST_START: /css/css-grid/grid-overflowing-item-content-is-painted.html
1:23.30 pid:3951 1787375870888 Marionette INFO Testing http://web-platform.test:8000/css/css-grid/grid-overflowing-item-content-is-painted.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
1:23.51 pid:3951 1787375871101 Marionette INFO No differences allowed
1:23.51 TEST_END: PASS
1:23.51 INFO No more tests
1:23.53 pid:3951 1787375871123 Marionette INFO Stopped listening on port 45343
1:24.03 INFO Browser exited with return code 0
1:23.84 INFO Closing logging queue
1:23.84 INFO queue closed
1:24.05 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 7 checks (7 tests)
Expected results: 7
Unexpected results: 0
OK
1:24.05 INFO Got 0 unexpected results, with 0 unexpected passes
1:24.05 INFO Repetition 8 / 10
1:24.05 SUITE_START: web-platform-test - running 1 tests
1:24.05 INFO Using 1 child processes
1:24.06 INFO Setting up ssl
1:24.08 certutil b''
1:24.10 certutil b''
1:24.10 certutil b'\nCertificate Nickname Trust Attributes\n SSL,S/MIME,JAR/XPI\n\nweb-platform-tests CT,, \n'
1:24.10 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmphnxqyi8r
1:24.12 INFO Starting runner
1:24.12 pid:4258 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4258 [4258] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
1:24.62 pid:4258 1787375872209 Marionette INFO Marionette enabled
1:24.72 pid:4258 1787375872315 Marionette INFO Listening on port 43321
1:25.87 pid:4258 console.error: services.settings:
1:25.87 pid:4258 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
1:25.87 pid:4258 Stack:
1:25.87 pid:4258 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
1:25.87 pid:4258 list@resource://services-settings/Database.sys.mjs:96:13
1:26.42 TEST_START: /css/css-grid/grid-overflowing-item-content-is-painted.html
1:26.47 pid:4258 1787375874057 Marionette INFO Testing http://web-platform.test:8000/css/css-grid/grid-overflowing-item-content-is-painted.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
1:26.69 pid:4258 1787375874279 Marionette INFO No differences allowed
1:26.69 TEST_END: PASS
1:26.69 INFO No more tests
1:26.72 pid:4258 1787375874307 Marionette INFO Stopped listening on port 43321
1:27.22 INFO Browser exited with return code 0
1:27.03 INFO Closing logging queue
1:27.03 INFO queue closed
1:27.23 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 8 checks (8 tests)
Expected results: 8
Unexpected results: 0
OK
1:27.23 INFO Got 0 unexpected results, with 0 unexpected passes
1:27.23 INFO Repetition 9 / 10
1:27.23 SUITE_START: web-platform-test - running 1 tests
1:27.23 INFO Using 1 child processes
1:27.24 INFO Setting up ssl
1:27.26 certutil b''
1:27.28 certutil b''
1:27.28 certutil b'\nCertificate Nickname Trust Attributes\n SSL,S/MIME,JAR/XPI\n\nweb-platform-tests CT,, \n'
1:27.29 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmpbr8y9_sc
1:27.31 INFO Starting runner
1:27.31 pid:4568 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4568 [4568] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
1:27.84 pid:4568 1787375875432 Marionette INFO Marionette enabled
1:27.95 pid:4568 1787375875542 Marionette INFO Listening on port 46567
1:29.11 pid:4568 console.error: services.settings:
1:29.12 pid:4568 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
1:29.12 pid:4568 Stack:
1:29.12 pid:4568 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
1:29.12 pid:4568 list@resource://services-settings/Database.sys.mjs:96:13
1:29.61 TEST_START: /css/css-grid/grid-overflowing-item-content-is-painted.html
1:29.66 pid:4568 1787375877255 Marionette INFO Testing http://web-platform.test:8000/css/css-grid/grid-overflowing-item-content-is-painted.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
1:29.90 pid:4568 1787375877493 Marionette INFO No differences allowed
1:29.90 TEST_END: PASS
1:29.90 INFO No more tests
1:29.93 pid:4568 1787375877523 Marionette INFO Stopped listening on port 46567
1:30.45 INFO Browser exited with return code 0
1:30.24 INFO Closing logging queue
1:30.24 INFO queue closed
1:30.47 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 9 checks (9 tests)
Expected results: 9
Unexpected results: 0
OK
1:30.47 INFO Got 0 unexpected results, with 0 unexpected passes
1:30.47 INFO Repetition 10 / 10
1:30.47 SUITE_START: web-platform-test - running 1 tests
1:30.47 INFO Using 1 child processes
1:30.48 INFO Setting up ssl
1:30.50 certutil b''
1:30.52 certutil b''
1:30.53 certutil b'\nCertificate Nickname Trust Attributes\n SSL,S/MIME,JAR/XPI\n\nweb-platform-tests CT,, \n'
1:30.53 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmphgkcuv51
1:30.55 INFO Starting runner
1:30.55 pid:4881 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4881 [4881] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
1:31.03 pid:4881 1787375878627 Marionette INFO Marionette enabled
1:31.14 pid:4881 1787375878736 Marionette INFO Listening on port 59699
1:32.31 pid:4881 console.error: services.settings:
1:32.31 pid:4881 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
1:32.31 pid:4881 Stack:
1:32.32 pid:4881 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
1:32.32 pid:4881 list@resource://services-settings/Database.sys.mjs:96:13
1:32.80 TEST_START: /css/css-grid/grid-overflowing-item-content-is-painted.html
1:32.86 pid:4881 1787375880449 Marionette INFO Testing http://web-platform.test:8000/css/css-grid/grid-overflowing-item-content-is-painted.html == http://web-platform.test:8000/css/reference/ref-filled-green-100px-square-only.html
1:33.08 pid:4881 1787375880669 Marionette INFO No differences allowed
1:33.08 TEST_END: PASS
1:33.08 INFO No more tests
1:33.12 pid:4881 1787375880711 Marionette INFO Stopped listening on port 59699
1:33.64 INFO Browser exited with return code 0
1:33.44 INFO Closing logging queue
1:33.44 INFO queue closed
1:33.65 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 10 checks (10 tests)
Expected results: 10
Unexpected results: 0
OK
1:33.65 INFO Got 0 unexpected results, with 0 unexpected passes
1:33.65 wptserve INFO Stopped http server on 127.0.0.1:8000
1:33.65 wptserve INFO Stopped http server on 127.0.0.1:8002
1:33.65 wptserve INFO Stopped http server on 127.0.0.1:8001
1:33.65 wptserve INFO Stopped http server on 127.0.0.1:8003
1:33.66 wptserve INFO Stopped http server on 127.0.0.1:8443
1:33.66 wptserve INFO Stopped http server on 127.0.0.1:8444
1:33.66 wptserve INFO Stopped http server on 127.0.0.1:8445
1:33.66 wptserve INFO Stopped http server on 127.0.0.1:8446
1:33.67 wptserve INFO Stopped http server on 127.0.0.1:9000
1:33.67 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
1:33.87 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:33.88 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:33.91 INFO Removed font: Ahem.ttf
1:33.94 INFO Closing logging queue
1:33.94 INFO queue closed
1:33.95 INFO ::: Ran 10 of expected 10 iterations.
1:33.95 INFO ## All results ##
1:33.95 INFO ### /css/css-grid/grid-overflowing-item-content-is-painted.html ###
1:33.95 INFO | Subtest | Results | Messages |
1:33.95 INFO |---------|---------|----------|
1:33.95 INFO | | PASS | |
1:33.95 INFO
1:33.95 INFO ::: Running tests in a loop with restarts 10 times : PASS
1:33.95 INFO :::
1:33.95 INFO ::: Test verification PASS
1:33.95 INFO :::
[taskcluster 2026-08-22 05:18:04.881Z] === Task Finished ===
[taskcluster 2026-08-22 05:18:05.255Z] Successful task run with exit code: 0 completed in 250.811 seconds
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