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servo-wpt-sync merged 2 commits into from
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layout: Offset scrollable overflow hit test item by containing block #57037

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Community-TC Integration / wpt-firefox-nightly-stability succeeded Jan 9, 2026 in 26m 0s

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: 2026-01-09T02:34:50.238Z
Resolved: 2026-01-09T02:39:28.015Z
Task Execution Time: 4 minutes, 37 seconds, 777 milliseconds
Task Status: completed
Reason Resolved: completed
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 2026-01-09 02:34:50.319Z] Task ID: Sbn64vuHRui7gzk4BJiM9Q
[taskcluster 2026-01-09 02:34:50.319Z] Worker ID: 7610608848175543305
[taskcluster 2026-01-09 02:34:50.319Z] Worker Group: us-east1-c
[taskcluster 2026-01-09 02:34:50.319Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-09 02:34:50.319Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-09 02:34:50.319Z] Worker Version: 46.1.0
[taskcluster 2026-01-09 02:34:50.319Z] Public IP: 34.148.103.215
[taskcluster 2026-01-09 02:34:50.319Z] Hostname: proj-wpt-ci-frs7mvyprdadlbrozfzzkg

[taskcluster 2026-01-09 02:34:51.439Z] === 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

...(886 lines hidden)...

@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
 1:21.24 INFO Got 8 unexpected results, with 0 unexpected passes
 1:21.24 INFO Repetition 9 / 10
 1:21.24 SUITE_START: web-platform-test - running 1 tests
 1:21.24 INFO Using 1 child processes
 1:21.25 INFO Setting up ssl
 1:21.28 certutil b''
 1:21.30 certutil b''
 1:21.31 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 1:21.31 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmp8mywhqld
 1:21.33 INFO Starting runner
 1:21.33 pid:4115 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4115 [4115] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 1:22.02 pid:4115 1767926355850	Marionette	INFO	Marionette enabled
 1:22.16 pid:4115 1767926355986	Marionette	INFO	Listening on port 53637
 1:23.43 pid:4115 console.error: services.settings:
 1:23.43 pid:4115   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 1:23.43 pid:4115   Stack:
 1:23.43 pid:4115     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 1:23.43 pid:4115 list@resource://services-settings/Database.sys.mjs:96:13
 1:23.66 pid:4115 console.warn: BackupService: "There was an error while trying to get the Document's directory" [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource:///modules/backup/BackupService.sys.mjs :: get docsDirFolderPath :: line 1245"  data: no]
 1:23.94 TEST_START: /css/css-overflow/overflow-auto-scrolling-with-margins.html
 1:24.48 INFO {'actions': [{'type': 'none', 'actions': [{'type': 'pause', 'duration': 16}], 'id': '0'}, {'type': 'wheel', 'actions': [{'type': 'scroll', 'x': 218, 'y': 210, 'deltaX': 1000, 'deltaY': 1000, 'origin': 'viewport'}], 'id': '1'}]}
 1:24.56 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18

 1:24.56 INFO No more tests
 1:24.56 pid:4115 1767926358394	Marionette	INFO	Stopped listening on port 53637
 1:25.39 INFO Browser exited with return code -15
 1:25.24 INFO Closing logging queue
 1:25.25 INFO queue closed
 1:25.41 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 18 checks (9 subtests, 9 tests)
Expected results: 9
Unexpected results: 9
  subtest: 9 (9 fail)

Unexpected Results
------------------
/css/css-overflow/overflow-auto-scrolling-with-margins.html
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
 1:25.41 INFO Got 9 unexpected results, with 0 unexpected passes
 1:25.41 INFO Repetition 10 / 10
 1:25.41 SUITE_START: web-platform-test - running 1 tests
 1:25.41 INFO Using 1 child processes
 1:25.42 INFO Setting up ssl
 1:25.44 certutil b''
 1:25.47 certutil b''
 1:25.48 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 1:25.48 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmpdek0vnsp
 1:25.50 INFO Starting runner
 1:25.50 pid:4448 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4448 [4448] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 1:26.12 pid:4448 1767926359949	Marionette	INFO	Marionette enabled
 1:26.25 pid:4448 1767926360087	Marionette	INFO	Listening on port 58605
 1:26.26 pid:4448 [Parent 4448, Main Thread] WARNING: Failed to create DBus proxy for org.a11y.Bus: Could not connect: Connection refused
 1:26.27 pid:4448 : 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:201
 1:26.27 pid:4448 ** (firefox-nightly:4448): WARNING **: 02:39:20.096: Failed to create DBus proxy for org.a11y.Bus: Could not connect: Connection refused
 1:27.51 pid:4448 console.error: services.settings:
 1:27.51 pid:4448   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 1:27.51 pid:4448   Stack:
 1:27.51 pid:4448     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 1:27.51 pid:4448 list@resource://services-settings/Database.sys.mjs:96:13
 1:27.74 pid:4448 console.warn: BackupService: "There was an error while trying to get the Document's directory" [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource:///modules/backup/BackupService.sys.mjs :: get docsDirFolderPath :: line 1245"  data: no]
 1:28.01 TEST_START: /css/css-overflow/overflow-auto-scrolling-with-margins.html
 1:28.53 INFO {'actions': [{'type': 'none', 'actions': [{'type': 'pause', 'duration': 16}], 'id': '0'}, {'type': 'wheel', 'actions': [{'type': 'scroll', 'x': 218, 'y': 210, 'deltaX': 1000, 'deltaY': 1000, 'origin': 'viewport'}], 'id': '1'}]}
 1:28.60 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18

 1:28.60 INFO No more tests
 1:28.60 pid:4448 1767926362433	Marionette	INFO	Stopped listening on port 58605
 1:29.48 INFO Browser exited with return code -15
 1:29.33 INFO Closing logging queue
 1:29.33 INFO queue closed
 1:29.49 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 20 checks (10 subtests, 10 tests)
Expected results: 10
Unexpected results: 10
  subtest: 10 (10 fail)

Unexpected Results
------------------
/css/css-overflow/overflow-auto-scrolling-with-margins.html
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
  FAIL Margins should not interfere with interactive scrolling of a scroll container - assert_equals: Element scrolled horizontally expected 50 but got 45
@http://web-platform.test:8000/css/css-overflow/overflow-auto-scrolling-with-margins.html:48:18
 1:29.49 INFO Got 10 unexpected results, with 0 unexpected passes
 1:29.49 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:29.49 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:29.50 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:29.50 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:29.50 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:29.51 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:29.52 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:29.52 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:29.53 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:29.53 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:29.82 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:29.82 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:29.87 INFO Removed font: Ahem.ttf
 1:29.90 INFO Closing logging queue
 1:29.90 INFO queue closed
 1:29.91 INFO ::: Ran 10 of expected 10 iterations.
 1:29.91 INFO ## All results ##

 1:29.91 INFO ### /css/css-overflow/overflow-auto-scrolling-with-margins.html ###
 1:29.91 INFO |                                     Subtest                                     | Results |                                Messages                               |
 1:29.91 INFO |---------------------------------------------------------------------------------|---------|-----------------------------------------------------------------------|
 1:29.91 INFO |                                                                                 | OK      |                                                                       |
 1:29.91 INFO | `Margins should not interfere with interactive scrolling of a scroll container` | FAIL    | `assert_equals: Element scrolled horizontally expected 50 but got 45` |
 1:29.91 INFO 
 1:29.91 INFO ::: Running tests in a loop with restarts 10 times : PASS
 1:29.91 INFO :::
 1:29.91 INFO ::: Test verification PASS
 1:29.91 INFO :::
[taskcluster 2026-01-09 02:39:26.036Z] === Task Finished ===
[taskcluster 2026-01-09 02:39:26.700Z] Successful task run with exit code: 0 completed in 276.382 seconds
View more details on Community-TC Integration