[taskcluster 2026-02-01 21:25:18.591Z] Task ID: OQkBVKu1Sduyn2eFfqcGqQ
[taskcluster 2026-02-01 21:25:18.592Z] Worker ID: 4985140450170141284
[taskcluster 2026-02-01 21:25:18.592Z] Worker Group: us-east4-c
[taskcluster 2026-02-01 21:25:18.592Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-02-01 21:25:18.592Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-02-01 21:25:18.592Z] Worker Version: 46.1.0
[taskcluster 2026-02-01 21:25:18.592Z] Public IP: 34.186.38.149
[taskcluster 2026-02-01 21:25:18.592Z] Hostname: proj-wpt-ci-ienfanmkqhkcn8hnemqa8w

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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
 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
 0:08.92 INFO Identified 3 affected tests
 0:08.92 INFO Installing browser
 0:08.94 INFO Downloading Chrome for Testing from https://storage.googleapis.com/chrome-for-testing-public/146.0.7655.0/linux64/chrome-linux64.zip
 0:12.16 INFO Downloading Mojo bindings from https://storage.googleapis.com/chrome-for-testing-public/146.0.7655.0/mojojs.zip
 0:12.21 INFO MojoJS enabled automatically (mojojs_path: /home/test/web-platform-tests/_venv3/mojojs/gen)
 0:12.23 INFO Download info for matching ChromeDriver version found.
 0:12.23 INFO Downloading ChromeDriver from https://storage.googleapis.com/chrome-for-testing-public/146.0.7655.0/linux64/chromedriver-linux64.zip
 0:12.40 INFO Automatically turning on experimental features
 0:18.00 INFO Installed font: Ahem.ttf
 0:18.94 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:18.98 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:19.00 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:19.00 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:19.02 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:19.02 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:19.03 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:19.04 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:19.05 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:19.05 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:19.05 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:19.05 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:19.06 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:19.06 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:19.06 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:19.13 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:19.41 SUITE_START: web-platform-test - running 3 tests
 0:30.22 INFO Using 1 child processes
 0:30.22 INFO Starting WebDriver: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=37567 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
 0:30.24 INFO Got WebDriver port 44799
 0:30.33 pid:2208 Full command: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=37567 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
pid:2208 Starting ChromeDriver 146.0.7655.0 (075ce92a0d4fd1c102c0ae640dc0fbc3e52822a3-refs/branch-heads/7655@{#1}) on port 0
 0:30.33 pid:2208 Only local connections are allowed.
 0:30.33 pid:2208 Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
 0:30.33 pid:2208 ChromeDriver was started successfully on port 44799.
 0:30.33 INFO Webdriver started successfully.
 0:30.33 INFO Starting runner
 0:31.53 pid:2208 [2256:2256:0201/212758.539766:WARNING:ui/gfx/linux/gbm_support_x11.cc:48] dri3 extension not supported.
 0:31.53 pid:2208 [2256:2256:0201/212758.545971:WARNING:sandbox/policy/linux/sandbox_linux.cc:405] InitializeSandbox() called with multiple threads in process gpu-process.
 0:31.54 pid:2208 [1769981278.556][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.
 0:31.65 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:31.65 pid:2208 Try --help for options
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 0:31.68 pid:2208 [2225:2225:0201/212758.694669: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
 0:31.68 pid:2208 [2225:2225:0201/212758.694684:WARNING:dbus/property.cc:174] GetAll request failed for: org.freedesktop.UPower.Device
 0:31.70 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:31.70 pid:2208 Try --help for options
 0:31.70 pid:2208 [2225:2225:0201/212758.719096:WARNING:ui/base/idle/idle_linux.cc:111] None of the known D-Bus ScreenSaver services could be used.
 0:31.77 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:31.77 pid:2208 Try --help for options
 0:31.78 TEST_START: /long-animation-frame/loaf-forced-style-duration.html
 0:31.81 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:31.81 pid:2208 Try --help for options
 0:33.42 TEST_END: Test OK. Subtests passed 0/4. Unexpected 4
FAIL forcedStyleDuration attribute exists and is <= forcedStyleAndLayoutDuration - assert_true: forcedStyleDuration should be present on PerformanceScriptTiming expected true got false
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:33:3)
FAIL forcedStyleDuration is 0 when no forced style recalculation occurs - assert_equals: forcedStyleDuration should be 0 when no forced style occurred expected (number) 0 but got (undefined) undefined
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:52:3)
FAIL forcedStyleDuration accumulates multiple forced style recalculations - assert_greater_than_equal: forcedStyleDuration should be >= 0 after forced style recalculations expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:83:3)
FAIL forcedStyleDuration is part of forcedStyleAndLayoutDuration when layout is also forced - assert_greater_than_equal: forcedStyleAndLayoutDuration >= forcedStyleDuration when layout is forced expected a "undefined" but got a "number"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:109:3)

 0:33.42 TEST_START: /long-animation-frame/loaf-style-duration.html
 0:33.44 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:33.44 pid:2208 Try --help for options
 0:36.76 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:36.76 pid:2208 Try --help for options
 0:36.79 TEST_END: Test OK. Subtests passed 0/9. Unexpected 9
FAIL styleDuration attribute exists on PerformanceLongAnimationFrameTiming - assert_true: styleDuration should be present on PerformanceLongAnimationFrameTiming expected true got false
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:20:3)
FAIL styleDuration is 0 when no rendering phase occurs - assert_equals: styleDuration should be 0 when no rendering occurred expected (number) 0 but got (undefined) undefined
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:37:5)
FAIL styleDuration captures render-phase style recalculation - assert_greater_than_equal: styleDuration should be non-negative expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:63:3)
FAIL styleDuration does not exceed frame duration - assert_less_than_equal: styleDuration should not exceed total frame duration expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:79:3)
FAIL styleDuration does not include forced style from scripts (tracked separately) - assert_greater_than_equal: Script's forcedStyleDuration should be >= 0 expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:108:3)
FAIL styleDuration is measured during the render phase - assert_greater_than_equal: styleDuration should be >= 0 during render phase expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:137:5)
FAIL styleDuration captures style recalculations during ResizeObserver callbacks - assert_greater_than_equal: styleDuration should be >= 0 during ResizeObserver callback expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:170:3)
FAIL styleDuration captures style recalculations from container queries - assert_greater_than_equal: styleDuration should be >= 0 during container query recalculation expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:223:3)
FAIL styleDuration captures style recalculations from multiple ResizeObservers - assert_greater_than_equal: styleDuration should capture style work from multiple ResizeObservers expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:266:3)

 0:36.79 TEST_START: /long-animation-frame/loaf-toJSON.html
 0:36.82 pid:2208 Error: unrecognized flag --disable_eager_allocation_failures
 0:36.82 pid:2208 Try --help for options
 0:37.56 TEST_END: Test OK. Subtests passed 1/1. Unexpected 0
 0:37.56 INFO No more tests
 0:37.61 INFO Closing logging queue
 0:37.61 INFO queue closed
 0:37.67 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 17 checks (14 subtests, 3 tests)
Expected results: 4
Unexpected results: 13
  subtest: 13 (13 fail)

Unexpected Results
------------------
/long-animation-frame/loaf-forced-style-duration.html
  FAIL forcedStyleDuration attribute exists and is <= forcedStyleAndLayoutDuration - assert_true: forcedStyleDuration should be present on PerformanceScriptTiming expected true got false
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:33:3)
  FAIL forcedStyleDuration is 0 when no forced style recalculation occurs - assert_equals: forcedStyleDuration should be 0 when no forced style occurred expected (number) 0 but got (undefined) undefined
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:52:3)
  FAIL forcedStyleDuration accumulates multiple forced style recalculations - assert_greater_than_equal: forcedStyleDuration should be >= 0 after forced style recalculations expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:83:3)
  FAIL forcedStyleDuration is part of forcedStyleAndLayoutDuration when layout is also forced - assert_greater_than_equal: forcedStyleAndLayoutDuration >= forcedStyleDuration when layout is forced expected a "undefined" but got a "number"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-forced-style-duration.html:109:3)
/long-animation-frame/loaf-style-duration.html
  FAIL styleDuration attribute exists on PerformanceLongAnimationFrameTiming - assert_true: styleDuration should be present on PerformanceLongAnimationFrameTiming expected true got false
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:20:3)
  FAIL styleDuration is 0 when no rendering phase occurs - assert_equals: styleDuration should be 0 when no rendering occurred expected (number) 0 but got (undefined) undefined
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:37:5)
  FAIL styleDuration captures render-phase style recalculation - assert_greater_than_equal: styleDuration should be non-negative expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:63:3)
  FAIL styleDuration does not exceed frame duration - assert_less_than_equal: styleDuration should not exceed total frame duration expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:79:3)
  FAIL styleDuration does not include forced style from scripts (tracked separately) - assert_greater_than_equal: Script's forcedStyleDuration should be >= 0 expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:108:3)
  FAIL styleDuration is measured during the render phase - assert_greater_than_equal: styleDuration should be >= 0 during render phase expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:137:5)
  FAIL styleDuration captures style recalculations during ResizeObserver callbacks - assert_greater_than_equal: styleDuration should be >= 0 during ResizeObserver callback expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:170:3)
  FAIL styleDuration captures style recalculations from container queries - assert_greater_than_equal: styleDuration should be >= 0 during container query recalculation expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:223:3)
  FAIL styleDuration captures style recalculations from multiple ResizeObservers - assert_greater_than_equal: styleDuration should capture style work from multiple ResizeObservers expected a number but got a "undefined"
    at Test.<anonymous> (http://web-platform.test:8000/long-animation-frame/loaf-style-duration.html:266:3)
 0:37.68 INFO Got 2 unexpected results, with 0 unexpected passes
 0:37.68 wptserve INFO Stopped http server on 127.0.0.1:8000
 0:37.68 wptserve INFO Stopped http server on 127.0.0.1:8001
 0:37.68 wptserve INFO Stopped http server on 127.0.0.1:8002
 0:37.68 wptserve INFO Stopped http server on 127.0.0.1:8003
 0:37.70 wptserve INFO Stopped http server on 127.0.0.1:8443
 0:37.70 wptserve INFO Stopped http server on 127.0.0.1:8444
 0:37.70 wptserve INFO Stopped http server on 127.0.0.1:8446
 0:37.70 wptserve INFO Stopped http server on 127.0.0.1:8445
 0:37.70 wptserve INFO Stopped http server on 127.0.0.1:9000
 0:37.70 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:37.93 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:37.93 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:37.97 INFO Removed font: Ahem.ttf
 0:37.99 INFO Closing logging queue
 0:37.99 INFO queue closed
 0:37.99 INFO Tolerating 2 unexpected results
[taskcluster 2026-02-01 21:28:10.181Z] === Task Finished ===
[taskcluster 2026-02-01 21:28:11.222Z] Successful task run with exit code: 0 completed in 172.633 seconds