2061955 - Perma TEST-UNEXPECTED-PASS | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003.html | Testing http://web-platform.test:8000/css/css-grid/grid-lan when Gecko 155 merges to Beta on 2026-08-13

Status: RESOLVED FIXED

(Core :: Layout: Grid, defect)

Description

[rperta]

• Central-as-beta-simulation
• How to run these simulations
• Failure log

Failure snippet:

[task 2026-08-08T15:09:24.674+00:00] 15:09:24     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-container-baseline-subgrid-001.html | took 132ms
[task 2026-08-08T15:09:24.675+00:00] 15:09:24     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-001.html
[task 2026-08-08T15:09:24.678+00:00] 15:09:24     INFO - PID 3324 | 1786201764676	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-001.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-001-ref.html
[task 2026-08-08T15:09:24.804+00:00] 15:09:24     INFO - PID 3324 | 1786201764803	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:24.806+00:00] 15:09:24     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-001.html | took 131ms
[task 2026-08-08T15:09:24.807+00:00] 15:09:24     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-002.html
[task 2026-08-08T15:09:24.808+00:00] 15:09:24     INFO - PID 3324 | 1786201764807	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-002.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-002-ref.html
[task 2026-08-08T15:09:24.938+00:00] 15:09:24     INFO - PID 3324 | 1786201764937	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:24.940+00:00] 15:09:24     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-002.html | took 134ms
[task 2026-08-08T15:09:24.941+00:00] 15:09:24     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003.html
[task 2026-08-08T15:09:24.942+00:00] 15:09:24     INFO - PID 3324 | 1786201764940	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003-ref.html
[task 2026-08-08T15:09:25.069+00:00] 15:09:25     INFO - PID 3324 | 1786201765068	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:25.082+00:00] 15:09:25     INFO - TEST-UNEXPECTED-PASS | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003.html | Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-003-ref.html
[task 2026-08-08T15:09:25.082+00:00] 15:09:25     INFO - REFTEST   IMAGE 1 (TEST): data:image/png;base64,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
[task 2026-08-08T15:09:25.082+00:00] 15:09:25     INFO - REFTEST   IMAGE 2 (REFERENCE): data:image/png;base64,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
[task 2026-08-08T15:09:25.082+00:00] 15:09:25     INFO - TEST-INFO expected FAIL | took 136ms
[task 2026-08-08T15:09:25.107+00:00] 15:09:25     INFO - PID 3324 | 1786201765107	Marionette	INFO	Stopped listening on port 59963
[task 2026-08-08T15:09:25.263+00:00] 15:09:25     INFO - Browser exited with return code 0
[task 2026-08-08T15:09:25.263+00:00] 15:09:25     INFO - Closing logging queue
[task 2026-08-08T15:09:25.263+00:00] 15:09:25     INFO - queue closed
[task 2026-08-08T15:09:25.310+00:00] 15:09:25     INFO - Application command: /opt/worker/tasks/cltbld/build/application/Firefox Developer Edition.app/Contents/MacOS/firefox --marionette --remote-allow-system-access about:blank -foreground -profile /tmp/tmp52mcf1e6
[task 2026-08-08T15:09:25.316+00:00] 15:09:25     INFO - PID 3355 | 1786201712288	Marionette	INFO	Marionette enabled
[task 2026-08-08T15:09:25.316+00:00] 15:09:25     INFO - PID 3355 | 2026-08-08 15:08:32.340 Firefox Developer Edition GPU Helper[3362:62407] Failure on line 687 in function id scheduleApplicationNotification(LSNotificationCode, NSWorkspaceNotificationCenter *): noErr == _LSModifyNotification(notificationID, 1, &code, 0, NULL, NULL, NULL)
[task 2026-08-08T15:09:25.316+00:00] 15:09:25     INFO - PID 3355 | 2026-08-08 15:08:32.375 Firefox Developer Edition GPU Helper[3362:62424] Connection Invalid error for service com.apple.hiservices-xpcservice.
[task 2026-08-08T15:09:25.317+00:00] 15:09:25     INFO - PID 3355 | 2026-08-08 15:08:32.375 Firefox Developer Edition GPU Helper[3362:62407] Error received in message reply handler: Connection invalid
[task 2026-08-08T15:09:25.317+00:00] 15:09:25     INFO - PID 3355 | 1786201712866	Marionette	INFO	Listening on port 60024
[task 2026-08-08T15:09:25.317+00:00] 15:09:25     INFO - PID 3355 | UNSUPPORTED (log once): POSSIBLE ISSUE: unit 1 GLD_TEXTURE_INDEX_2D is unloadable and bound to sampler type (Float) - using zero texture because texture unloadable
[task 2026-08-08T15:09:25.318+00:00] 15:09:25     INFO - PID 3355 | 2026-08-08 15:08:33.104 firefox[3355:62322] +[IMKClient subclass]: chose IMKClient_Modern
[task 2026-08-08T15:09:25.318+00:00] 15:09:25     INFO - PID 3355 | console.error: services.settings:
[task 2026-08-08T15:09:25.318+00:00] 15:09:25     INFO - PID 3355 |   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
[task 2026-08-08T15:09:25.318+00:00] 15:09:25     INFO - PID 3355 |   Stack:
[task 2026-08-08T15:09:25.318+00:00] 15:09:25     INFO - PID 3355 |     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
[task 2026-08-08T15:09:25.319+00:00] 15:09:25     INFO - PID 3355 | list@resource://services-settings/Database.sys.mjs:96:13
[task 2026-08-08T15:09:25.319+00:00] 15:09:25     INFO - Starting runner
[task 2026-08-08T15:09:25.472+00:00] 15:09:25     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-004.html
[task 2026-08-08T15:09:25.476+00:00] 15:09:25     INFO - Setting pref layout.disable-pixel-alignment to true
[task 2026-08-08T15:09:25.478+00:00] 15:09:25     INFO - Setting pref network.dns.disableIPv6 to true
[task 2026-08-08T15:09:25.480+00:00] 15:09:25     INFO - Setting pref layout.css.tree-counting-functions.enabled to true
[task 2026-08-08T15:09:25.481+00:00] 15:09:25     INFO - Setting pref layout.css.supports.at-rule.enabled to true
[task 2026-08-08T15:09:25.483+00:00] 15:09:25     INFO - Setting pref layout.css.calc-typed-arithmetic.enabled to true
[task 2026-08-08T15:09:25.485+00:00] 15:09:25     INFO - Setting pref dom.forms.html_color_picker.enabled to true
[task 2026-08-08T15:09:25.487+00:00] 15:09:25     INFO - Setting pref layout.css.ellipse-corners.enabled to true
[task 2026-08-08T15:09:25.488+00:00] 15:09:25     INFO - Setting pref layout.css.basic-shape-shape.enabled to true
[task 2026-08-08T15:09:25.490+00:00] 15:09:25     INFO - Setting pref layout.css.style-queries.enabled to true
[task 2026-08-08T15:09:25.491+00:00] 15:09:25     INFO - Setting pref dom.viewTransitions.enabled to true
[task 2026-08-08T15:09:25.492+00:00] 15:09:25     INFO - Setting pref gfx.font_rendering.fallback.async to false
[task 2026-08-08T15:09:25.495+00:00] 15:09:25     INFO - Setting pref layout.css.custom-media.enabled to true
[task 2026-08-08T15:09:25.498+00:00] 15:09:25     INFO - Setting pref layout.css.progress-function.enabled to true
[task 2026-08-08T15:09:25.499+00:00] 15:09:25     INFO - Setting pref layout.css.calc.typed-arithmetic.enabled to true
[task 2026-08-08T15:09:25.500+00:00] 15:09:25     INFO - Setting pref layout.css.serialize-grid-implicit-tracks to false
[task 2026-08-08T15:09:25.543+00:00] 15:09:25     INFO - PID 3355 | 1786201765542	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-004.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-004-ref.html
[task 2026-08-08T15:09:25.679+00:00] 15:09:25     INFO - PID 3355 | 1786201765679	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:25.681+00:00] 15:09:25     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-004.html | took 209ms
[task 2026-08-08T15:09:25.681+00:00] 15:09:25     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-005.html
[task 2026-08-08T15:09:25.682+00:00] 15:09:25     INFO - PID 3355 | 1786201765681	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-005.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-005-ref.html
[task 2026-08-08T15:09:25.778+00:00] 15:09:25     INFO - PID 3355 | 1786201765778	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:25.779+00:00] 15:09:25     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-005.html | took 98ms
[task 2026-08-08T15:09:25.779+00:00] 15:09:25     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-006.html
[task 2026-08-08T15:09:25.779+00:00] 15:09:25     INFO - PID 3355 | 1786201765779	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-006.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-006-ref.html
[task 2026-08-08T15:09:25.878+00:00] 15:09:25     INFO - PID 3355 | 1786201765877	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:25.878+00:00] 15:09:25     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/column-grid-lanes-item-baseline-subgrid-006.html | took 99ms
[task 2026-08-08T15:09:25.879+00:00] 15:09:25     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-container-baseline-subgrid-001.html
[task 2026-08-08T15:09:25.879+00:00] 15:09:25     INFO - PID 3355 | 1786201765879	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-container-baseline-subgrid-001.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-container-baseline-subgrid-001-ref.html
[task 2026-08-08T15:09:25.979+00:00] 15:09:25     INFO - PID 3355 | 1786201765978	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:25.979+00:00] 15:09:25     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-container-baseline-subgrid-001.html | took 101ms
[task 2026-08-08T15:09:25.980+00:00] 15:09:25     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-001.html
[task 2026-08-08T15:09:25.981+00:00] 15:09:25     INFO - PID 3355 | 1786201765980	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-001.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-001-ref.html
[task 2026-08-08T15:09:26.078+00:00] 15:09:26     INFO - PID 3355 | 1786201766078	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.078+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-001.html | took 99ms
[task 2026-08-08T15:09:26.079+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-002.html
[task 2026-08-08T15:09:26.079+00:00] 15:09:26     INFO - PID 3355 | 1786201766079	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-002.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-002-ref.html
[task 2026-08-08T15:09:26.179+00:00] 15:09:26     INFO - PID 3355 | 1786201766179	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.180+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-002.html | took 102ms
[task 2026-08-08T15:09:26.181+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-003.html
[task 2026-08-08T15:09:26.181+00:00] 15:09:26     INFO - PID 3355 | 1786201766180	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-003.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-003-ref.html
[task 2026-08-08T15:09:26.278+00:00] 15:09:26     INFO - PID 3355 | 1786201766278	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.279+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-003.html | took 98ms
[task 2026-08-08T15:09:26.279+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-004.html
[task 2026-08-08T15:09:26.280+00:00] 15:09:26     INFO - PID 3355 | 1786201766279	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-004.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-004-ref.html
[task 2026-08-08T15:09:26.378+00:00] 15:09:26     INFO - PID 3355 | 1786201766378	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.379+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-004.html | took 100ms
[task 2026-08-08T15:09:26.379+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-005.html
[task 2026-08-08T15:09:26.380+00:00] 15:09:26     INFO - PID 3355 | 1786201766380	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-005.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-005-ref.html
[task 2026-08-08T15:09:26.480+00:00] 15:09:26     INFO - PID 3355 | 1786201766479	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.481+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-005.html | took 101ms
[task 2026-08-08T15:09:26.481+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-006.html
[task 2026-08-08T15:09:26.482+00:00] 15:09:26     INFO - PID 3355 | 1786201766481	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-006.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-006-ref.html
[task 2026-08-08T15:09:26.579+00:00] 15:09:26     INFO - PID 3355 | 1786201766578	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.579+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/row-grid-lanes-item-baseline-subgrid-006.html | took 99ms
[task 2026-08-08T15:09:26.580+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001a.html
[task 2026-08-08T15:09:26.581+00:00] 15:09:26     INFO - PID 3355 | 1786201766580	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001a.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001a-ref.html
[task 2026-08-08T15:09:26.679+00:00] 15:09:26     INFO - PID 3355 | 1786201766679	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.680+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001a.html | took 101ms
[task 2026-08-08T15:09:26.681+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001b.html
[task 2026-08-08T15:09:26.681+00:00] 15:09:26     INFO - PID 3355 | 1786201766680	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001b.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001b-ref.html
[task 2026-08-08T15:09:26.778+00:00] 15:09:26     INFO - PID 3355 | 1786201766777	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.778+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001b.html | took 98ms
[task 2026-08-08T15:09:26.778+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001c.html
[task 2026-08-08T15:09:26.779+00:00] 15:09:26     INFO - PID 3355 | 1786201766779	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001c.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001c-ref.html
[task 2026-08-08T15:09:26.878+00:00] 15:09:26     INFO - PID 3355 | 1786201766877	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.879+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001c.html | took 100ms
[task 2026-08-08T15:09:26.879+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001d.html
[task 2026-08-08T15:09:26.880+00:00] 15:09:26     INFO - PID 3355 | 1786201766879	Marionette	INFO	Testing http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001d.html == http://web-platform.test:8000/css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001d-ref.html
[task 2026-08-08T15:09:26.978+00:00] 15:09:26     INFO - PID 3355 | 1786201766978	Marionette	INFO	No differences allowed
[task 2026-08-08T15:09:26.980+00:00] 15:09:26     INFO - TEST-FAIL | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-001d.html | took 101ms
[task 2026-08-08T15:09:26.980+00:00] 15:09:26     INFO - TEST-START | /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/column/grid-lanes-subgrid-002a.html

Comment 1

[Intermittent Failures Robot]

23 failures were associated with this bug yesterday.

Repository breakdown:

• try: 23

Table

	no_variant	nofis	s	swr
android-x86_64/opt		2
linux2404-x86_64/asan	1
linux2404-x86_64/debug	3		3	1
linux2404-x86_64/opt	2
linux2404-x86_64/tsan	3
macosx1500-aarch64/debug	3
macosx1500-aarch64/opt	2
windows11-x86_64/debug	1			1
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2061955&startday=2026-08-08&endday=2026-08-08&tree=all

Comment 2

[Intermittent Failures Robot]

23 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 23

Table

	no_variant	nofis	s	swr
android-x86_64/opt		2
linux2404-x86_64/asan	1
linux2404-x86_64/debug	3		3	1
linux2404-x86_64/opt	2
linux2404-x86_64/tsan	3
macosx1500-aarch64/debug	3
macosx1500-aarch64/opt	2
windows11-x86_64/debug	1			1
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2061955&startday=2026-08-03&endday=2026-08-09&tree=all

Comment 3

[Alexandra Borovova [:Sasha]]

Attachment: Bug 2061955 - Enable "layout.css.grid-subgrid-baselines.enabled" preference for css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/ tests.

Comment 4

[agoloman]

The patch is working in today's beta simulation.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/8897b1919414
https://hg.mozilla.org/integration/autoland/rev/2bebae8151b8
Enable "layout.css.grid-subgrid-baselines.enabled" preference for css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/baseline/ tests. r=emilio

Comment 6

[pstanciu]

https://hg.mozilla.org/mozilla-central/rev/2bebae8151b8