[taskcluster 2026-04-06 22:19:36.233Z] Task ID: F2vZ3MFzQrqdomUTDDiOkw
[taskcluster 2026-04-06 22:19:36.233Z] Worker ID: 8649866577316519259
[taskcluster 2026-04-06 22:19:36.233Z] Worker Group: us-east1-d
[taskcluster 2026-04-06 22:19:36.233Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-04-06 22:19:36.233Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-04-06 22:19:36.233Z] Worker Version: 46.1.0
[taskcluster 2026-04-06 22:19:36.233Z] Public IP: 34.26.160.91
[taskcluster 2026-04-06 22:19:36.233Z] Hostname: proj-wpt-ci-lgbrvnd1tlysg1qzf-tdtg

[taskcluster 2026-04-06 22:19:37.515Z] === 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

...(375 lines hidden)...

Setting default value
Failed to read: session.autoRaiseDelay
Setting default value
Failed to read: session.screen0.opaqueMove
Setting default value
Failed to read: session.screen0.fullMaximization
Setting default value
Failed to read: session.screen0.maxIgnoreIncrement
Setting default value
Failed to read: session.screen0.maxDisableMove
Setting default value
Failed to read: session.screen0.maxDisableResize
Setting default value
Failed to read: session.screen0.workspacewarping
Setting default value
Failed to read: session.screen0.showwindowposition
Setting default value
Failed to read: session.screen0.autoRaise
Setting default value
Failed to read: session.screen0.clickRaises
Setting default value
Failed to read: session.screen0.defaultDeco
Setting default value
Failed to read: session.screen0.tab.placement
Setting default value
Failed to read: session.screen0.windowMenu
Setting default value
Failed to read: session.screen0.noFocusWhileTypingDelay
Setting default value
Failed to read: session.screen0.workspaces
Setting default value
Failed to read: session.screen0.edgeSnapThreshold
Setting default value
Failed to read: session.screen0.window.focus.alpha
Setting default value
Failed to read: session.screen0.window.unfocus.alpha
Setting default value
Failed to read: session.screen0.menu.alpha
Setting default value
Failed to read: session.screen0.menuDelay
Setting default value
Failed to read: session.screen0.tab.width
Setting default value
Failed to read: session.screen0.tooltipDelay
Setting default value
Failed to read: session.screen0.allowRemoteActions
Setting default value
Failed to read: session.screen0.clientMenu.usePixmap
Setting default value
Failed to read: session.screen0.tabs.usePixmap
Setting default value
Failed to read: session.screen0.tabs.maxOver
Setting default value
Failed to read: session.screen0.tabs.intitlebar
Setting default value
Failed to read: session.screen0.focusModel
Setting default value
Failed to read: session.screen0.tabFocusModel
Setting default value
Failed to read: session.screen0.focusNewWindows
Setting default value
Failed to read: session.screen0.focusSameHead
Setting default value
Failed to read: session.screen0.rowPlacementDirection
Setting default value
Failed to read: session.screen0.colPlacementDirection
Setting default value
Failed to read: session.screen0.windowPlacement
Setting default value
Failed to read: session.screen0.slit.acceptKdeDockapps
Setting default value
Failed to read: session.screen0.slit.autoHide
Setting default value
Failed to read: session.screen0.slit.maxOver
Setting default value
Failed to read: session.screen0.slit.placement
Setting default value
Failed to read: session.screen0.slit.alpha
Setting default value
Failed to read: session.screen0.slit.onhead
Setting default value
Failed to read: session.screen0.slit.layer
Setting default value
Failed to read: session.screen0.toolbar.autoHide
Setting default value
Failed to read: session.screen0.toolbar.maxOver
Setting default value
Failed to read: session.screen0.toolbar.visible
Setting default value
Failed to read: session.screen0.toolbar.alpha
Setting default value
Failed to read: session.screen0.toolbar.layer
Setting default value
Failed to read: session.screen0.toolbar.onhead
Setting default value
Failed to read: session.screen0.toolbar.placement
Setting default value
Failed to read: session.screen0.toolbar.height
Setting default value
Failed to read: session.screen0.iconbar.mode
Setting default value
Failed to read: session.screen0.iconbar.alignment
Setting default value
Failed to read: session.screen0.iconbar.iconWidth
Setting default value
Failed to read: session.screen0.iconbar.iconTextPadding
Setting default value
Failed to read: session.screen0.iconbar.usePixmap
Setting default value
Warning: could not load product 'firefox' for argument registration: No module named 'mozleak'
Warning: could not load product 'firefox_android' for argument registration: No module named 'mozrunner'
 0:00.00 INFO Set tests_root to /home/test/web-platform-tests
 0:00.00 INFO Set metadata_root to /home/test/web-platform-tests
 0:00.00 INFO Set manifest_update to True
 0:00.00 INFO Set manifest_download to True
 0:06.52 INFO Identified 1 affected tests
 0:06.52 INFO Installing browser
 0:06.58 INFO Downloading Chrome for Testing from https://storage.googleapis.com/chrome-for-testing-public/148.0.7766.3/linux64/chrome-linux64.zip
 0:09.58 INFO Downloading Mojo bindings from https://storage.googleapis.com/chrome-for-testing-public/148.0.7766.3/mojojs.zip
 0:09.63 INFO MojoJS enabled automatically (mojojs_path: /home/test/web-platform-tests/_venv3/mojojs/gen)
 0:09.66 INFO Download info for matching ChromeDriver version found.
 0:09.66 INFO Downloading ChromeDriver from https://storage.googleapis.com/chrome-for-testing-public/148.0.7766.3/linux64/chromedriver-linux64.zip
 0:09.86 INFO Automatically turning on experimental features
 0:15.38 INFO Installed font: Ahem.ttf
 0:16.31 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:16.34 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:16.35 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:16.37 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:16.39 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:16.39 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:16.40 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:16.41 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:16.41 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:16.41 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:16.41 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:16.42 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:16.42 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:16.42 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:16.43 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:16.49 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:16.76 SUITE_START: web-platform-test - running 1 tests
 0:22.75 INFO Using 1 child processes
 0:22.75 INFO Starting WebDriver: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=33303 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
 0:22.76 INFO Got WebDriver port 38871
 0:22.86 pid:2204 Full command: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=33303 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
pid:2204 Starting ChromeDriver 148.0.7766.3 (bb1e9d2cbbe2eaf817259ed36b44cbe777103365-refs/branch-heads/7766@{#7}) on port 0
 0:22.86 pid:2204 Only local connections are allowed.
 0:22.86 pid:2204 Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
 0:22.86 pid:2204 ChromeDriver was started successfully on port 38871.
 0:22.86 INFO Webdriver started successfully.
 0:22.86 INFO Starting runner
 0:24.03 pid:2204 [2259:2259:0406/222115.572152:WARNING:sandbox/policy/linux/sandbox_linux.cc:404] InitializeSandbox() called with multiple threads in process gpu-process.
 0:24.04 pid:2204 [2259:2259:0406/222115.576005:WARNING:ui/gfx/linux/gbm_support_x11.cc:48] dri3 extension not supported.
 0:24.05 pid:2204 [1775514075.596][WARNING]: You are using an unsupported command-line switch: --disable-build-check. Please don't report bugs that cannot be reproduced with this switch removed.
 0:24.16 pid:2204 Error: unrecognized flag --external_memory_accounted_in_global_limit
 0:24.16 pid:2204 Try --help for options
 0:24.16 pid:2204 [2221:2221:0406/222115.704697:ERROR:dbus/object_proxy.cc:572] Failed to call method: org.freedesktop.DBus.Properties.GetAll: object_path= /org/freedesktop/UPower/devices/DisplayDevice: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
 0:24.16 pid:2204 [2221:2221:0406/222115.704712:WARNING:dbus/property.cc:174] GetAll request failed for: org.freedesktop.UPower.Device
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 0:24.20 pid:2204 [2221:2221:0406/222115.737192:WARNING:ui/base/idle/idle_linux.cc:111] None of the known D-Bus ScreenSaver services could be used.
 0:24.20 pid:2204 Error: unrecognized flag --external_memory_accounted_in_global_limit
 0:24.20 pid:2204 Try --help for options
 0:24.26 pid:2204 Error: unrecognized flag --external_memory_accounted_in_global_limit
 0:24.27 pid:2204 Try --help for options
 0:24.32 TEST_START: /scroll-animations/css/view-timeline-inset-parsing.html
 0:24.36 pid:2204 Error: unrecognized flag --external_memory_accounted_in_global_limit
 0:24.36 pid:2204 Try --help for options
 0:24.77 TEST_END: Test OK. Subtests passed 23/23. Unexpected 0
 0:24.77 INFO No more tests
 0:24.82 INFO Closing logging queue
 0:24.82 INFO queue closed
 0:24.88 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 24 checks (23 subtests, 1 tests)
Expected results: 24
Unexpected results: 0
OK
 0:24.88 INFO Got 0 unexpected results, with 0 unexpected passes
 0:24.88 wptserve INFO Stopped http server on 127.0.0.1:8000
 0:24.88 wptserve INFO Stopped http server on 127.0.0.1:8001
 0:24.88 wptserve INFO Stopped http server on 127.0.0.1:8003
 0:24.88 wptserve INFO Stopped http server on 127.0.0.1:8002
 0:24.89 wptserve INFO Stopped http server on 127.0.0.1:8445
 0:24.89 wptserve INFO Stopped http server on 127.0.0.1:8446
 0:24.89 wptserve INFO Stopped http server on 127.0.0.1:8443
 0:24.90 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:24.90 wptserve INFO Stopped http server on 127.0.0.1:9000
 0:24.90 wptserve INFO Stopped http server on 127.0.0.1:8444
 0:25.27 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:25.27 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:25.32 INFO Removed font: Ahem.ttf
 0:25.34 INFO Closing logging queue
 0:25.34 INFO queue closed
[taskcluster 2026-04-06 22:21:23.045Z] === Task Finished ===
[taskcluster 2026-04-06 22:21:24.106Z] Successful task run with exit code: 0 completed in 107.874 seconds