Failed to read: session.screen0.iconbar.usePixmap
Setting default value
  ERROR: Command errored out with exit status 1:
   command: /home/test/web-platform-tests/_venv3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-shxt9inn/mozdebug/setup.py'"'"'; __file__='"'"'/tmp/pip-install-shxt9inn/mozdebug/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-36csjwa6
       cwd: /tmp/pip-install-shxt9inn/mozdebug/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for mozdebug
  ERROR: Command errored out with exit status 1:
   command: /home/test/web-platform-tests/_venv3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-shxt9inn/mozlog/setup.py'"'"'; __file__='"'"'/tmp/pip-install-shxt9inn/mozlog/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-j_e2g0s1
       cwd: /tmp/pip-install-shxt9inn/mozlog/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for mozlog
 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
  ERROR: Command errored out with exit status 1:
   command: /home/test/web-platform-tests/_venv3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xph82yo3/mozdevice/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xph82yo3/mozdevice/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-fwpluqn7
       cwd: /tmp/pip-install-xph82yo3/mozdevice/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for mozdevice
  ERROR: Command errored out with exit status 1:
   command: /home/test/web-platform-tests/_venv3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xph82yo3/mozprofile/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xph82yo3/mozprofile/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-wx8b7y6e
       cwd: /tmp/pip-install-xph82yo3/mozprofile/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for mozprofile
  ERROR: Command errored out with exit status 1:
   command: /home/test/web-platform-tests/_venv3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-xph82yo3/mozrunner/setup.py'"'"'; __file__='"'"'/tmp/pip-install-xph82yo3/mozrunner/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-28ktfexa
       cwd: /tmp/pip-install-xph82yo3/mozrunner/
  Complete output (6 lines):
  usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: setup.py --help [cmd1 cmd2 ...]
     or: setup.py --help-commands
     or: setup.py cmd --help
  
  error: invalid command 'bdist_wheel'
  ----------------------------------------
  ERROR: Failed building wheel for mozrunner
 0:12.76 INFO Identified 6 affected tests
 0:12.76 INFO Using certutil /usr/bin/certutil
 0:12.76 INFO Downloading geckodriver
 0:12.76 INFO Attempting to install webdriver from nightly
 0:13.28 INFO Extracted geckodriver to /home/test/web-platform-tests/_venv3/bin/geckodriver
 0:13.28 INFO Installed b'geckodriver 0.35.0 (d0336fee53a3 2024-09-03 04:25 +0000)'
 0:13.31 INFO Downloading test prefs from https://hg.mozilla.org/mozilla-central/archive/tip.zip/testing/profiles/
 0:16.55 INFO Test prefs downloaded to /home/test/web-platform-tests/_venv3/profiles/nightly/132.0
 0:16.70 mozversion INFO application_buildid: 20240904095513
 0:16.70 mozversion INFO application_changeset: 35b419e9cf538709ea3f63fc57e3291f00059d32
 0:16.70 mozversion INFO application_display_name: Firefox Nightly
 0:16.70 mozversion INFO application_id: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
 0:16.70 mozversion INFO application_name: Firefox
 0:16.70 mozversion INFO application_remotingname: firefox-nightly
 0:16.70 mozversion INFO application_repository: https://hg.mozilla.org/mozilla-central
 0:16.70 mozversion INFO application_vendor: Mozilla
 0:16.70 mozversion INFO application_version: 132.0a1
 0:16.70 mozversion INFO platform_buildid: 20240904095513
 0:16.70 mozversion INFO platform_changeset: 35b419e9cf538709ea3f63fc57e3291f00059d32
 0:16.70 mozversion INFO platform_repository: https://hg.mozilla.org/mozilla-central
 0:16.70 mozversion INFO platform_version: 132.0a1
 0:21.92 INFO Installed font: Ahem.ttf
 0:22.75 wptserve INFO Starting http server on http://127.0.0.1:8000
 0:22.78 wptserve INFO Starting http server on http://127.0.0.1:8002
 0:22.83 wptserve INFO Starting https server on https://127.0.0.1:8446
 0:22.83 wptserve INFO Starting http server on http://127.0.0.1:8001
 0:22.89 wptserve INFO Starting https server on https://127.0.0.1:8443
 0:22.91 wptserve INFO Starting http server on http://127.0.0.1:8003
 0:22.91 wptserve INFO Starting https server on https://127.0.0.1:8444
 0:22.94 wptserve INFO Starting https server on https://127.0.0.1:8445
 0:22.94 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.94 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.94 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:22.94 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 0:22.95 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:22.95 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:22.95 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:23.02 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:23.97 SUITE_START: web-platform-test - running 6 tests
 0:30.24 INFO Using 1 child processes
 0:30.25 INFO Setting up ssl
 0:30.29 certutil Full command: /usr/bin/certutil -N -d /tmp/tmpysfcm1i9.mozrunner -f /tmp/tmpysfcm1i9.mozrunner/.crtdbpw
certutil b''
 0:30.32 certutil b''
 0:30.32 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 0:30.33 INFO Application command: /home/test/build/firefox/firefox --marionette about:blank -profile /tmp/tmpanai3o9r
 0:30.34 INFO Starting runner
 0:30.83 pid:1391 Full command: /home/test/build/firefox/firefox --marionette about:blank
pid:1391 [GFX1-]: glxtest: libpci missing
 0:30.83 pid:1391 ATTENTION: default value of option mesa_glthread overridden by environment.
 0:30.91 pid:1391 1725471104646	Marionette	INFO	Marionette enabled
 0:30.98 pid:1391 1725471104713	Marionette	INFO	Listening on port 47333
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 0:33.16 pid:1391 console.error: ({})
 0:33.89 pid:1391 [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
 0:33.89 pid:1391 console.error: URLBar - QuickSuggest.SuggestBackendRust: "Ingest error for Amo: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base"
 0:33.90 pid:1391 [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
 0:33.92 pid:1391 console.error: URLBar - QuickSuggest.SuggestBackendRust: "Ingest error for Amp: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base"
 0:33.92 pid:1391 [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
 0:33.92 pid:1391 console.error: URLBar - QuickSuggest.SuggestBackendRust: "Ingest error for Wikipedia: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base"
 0:33.94 pid:1391 [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
 0:33.94 pid:1391 console.error: URLBar - QuickSuggest.SuggestBackendRust: "Ingest error for Mdn: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base"
 0:33.94 pid:1391 [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
 0:33.94 pid:1391 console.error: URLBar - QuickSuggest.SuggestBackendRust: "Ingest error for Yelp: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base"
 0:34.03 TEST_START: /html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html
 0:35.22 TEST_END: Test OK. Subtests passed 0/6. Unexpected 6
FAIL horizontal-tb "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Button height must be at least 24 pixels. expected a number greater than or equal to 24 but got 23
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:33:32
FAIL vertical-lr "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
FAIL vertical-rl "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
FAIL horizontal-tb "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Button height must be at least 24 pixels. expected a number greater than or equal to 24 but got 23
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:33:32
FAIL vertical-lr "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
FAIL vertical-rl "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32

 0:35.22 TEST_START: /html/semantics/forms/the-select-element/stylable-select/select-fallback-datalist-animations.tentative.html
 0:35.22 INFO Closing window 961d311a-40ca-4521-a766-f0bcd9960549
 0:35.36 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL select::picker(select) should support author provided top layer animations. - assert_equals: All 4 of the CSS rules should have been parsed. expected 4 but got 1
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-fallback-datalist-animations.tentative.html:46:16
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2622:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20

 0:35.36 TEST_START: /html/semantics/forms/the-select-element/stylable-select/select-keyboard-behavior.tentative.html
 0:35.36 INFO Closing window 055cadfb-30fe-4844-89cd-55826405802a
 0:35.45 TEST_END: Test ERROR, expected OK. Subtests passed 0/10. Unexpected 10
FAIL defaultbutton: When the listbox is closed, spacebar should open the listbox. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"NOTRUN defaultbutton: When the listbox is closed, all arrow keys should open the listbox.NOTRUN defaultbutton: When the listbox is closed, the enter key should submit the form or do nothing.NOTRUN defaultbutton: When the listbox is open, the enter key should commit the selected option.NOTRUN defaultbutton: When the listbox is open, the tab key should close the listbox.NOTRUN custombutton: When the listbox is closed, spacebar should open the listbox.NOTRUN custombutton: When the listbox is closed, all arrow keys should open the listbox.NOTRUN custombutton: When the listbox is closed, the enter key should submit the form or do nothing.NOTRUN custombutton: When the listbox is open, the enter key should commit the selected option.NOTRUN custombutton: When the listbox is open, the tab key should close the listbox.ERROR /html/semantics/forms/the-select-element/stylable-select/select-keyboard-behavior.tentative.html - Test named 'defaultbutton: When the listbox is closed, spacebar should open the listbox.' specified 1 'cleanup' function, and 1 failed.
 0:35.45 TEST_START: /html/semantics/forms/the-select-element/stylable-select/select-mouse-behavior.tentative.html
 0:35.45 INFO Closing window f46cf7a6-2186-4df0-87ca-181528580fc7
 0:35.57 TEST_END: Test OK. Subtests passed 0/4. Unexpected 4
FAIL fallbackbutton: Select with appearance:base-select should open and close when clicking the button. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"FAIL fallbackbutton: Clicking an option in an appearance:base-select select should choose the option and close the popover. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"FAIL custombutton: Select with appearance:base-select should open and close when clicking the button. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"FAIL custombutton: Clicking an option in an appearance:base-select select should choose the option and close the popover. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
 0:35.57 TEST_START: /html/semantics/forms/the-select-element/stylable-select/select-option-hover-styles.tentative.html
 0:35.58 INFO Closing window 754d2365-a26a-4175-9d34-e5b233d13cc0
 0:35.93 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Hover styles should be present for appearance:base-select options. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
 0:35.94 TEST_START: /html/semantics/forms/the-select-element/stylable-select/selectedoption.tentative.html
 0:35.94 INFO Closing window 1e290588-7d0f-4907-9671-cdca0ce6959f
 0:36.06 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL The <selectedoption> element should reflect the HTML contents of the selected <option>. - promise_test: Unhandled rejection with value: object "TypeError: can't access property "innerHTML", selectedOption is null"
 0:36.06 INFO No more tests
 0:36.07 pid:1391 1725471109805	Marionette	INFO	Stopped listening on port 47333
 0:36.71 INFO Browser exited with return code 0
 0:36.49 INFO Closing logging queue
 0:36.49 INFO queue closed
 0:36.72 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 29 checks (23 subtests, 6 tests)
Expected results: 5
Unexpected results: 24
  test: 1 (1 error)
  subtest: 23 (14 fail, 9 notrun)

Unexpected Results
------------------
/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html
  FAIL horizontal-tb "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Button height must be at least 24 pixels. expected a number greater than or equal to 24 but got 23
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:33:32
  FAIL vertical-lr "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
  FAIL vertical-rl "": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
  FAIL horizontal-tb "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Button height must be at least 24 pixels. expected a number greater than or equal to 24 but got 23
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:33:32
  FAIL vertical-lr "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
  FAIL vertical-rl "i": Select with appearance:base-select should have targets for pointer inputs be at least 24x24 CSS pixels. - assert_greater_than_equal: Option width must be at least 24 pixels. expected a number greater than or equal to 24 but got 0
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-accessibility-minimum-target-size.tentative.html:39:32
/html/semantics/forms/the-select-element/stylable-select/select-fallback-datalist-animations.tentative.html
  FAIL select::picker(select) should support author provided top layer animations. - assert_equals: All 4 of the CSS rules should have been parsed. expected 4 but got 1
@http://web-platform.test:8000/html/semantics/forms/the-select-element/stylable-select/select-fallback-datalist-animations.tentative.html:46:16
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2622:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
/html/semantics/forms/the-select-element/stylable-select/select-keyboard-behavior.tentative.html
  FAIL defaultbutton: When the listbox is closed, spacebar should open the listbox. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
  NOTRUN defaultbutton: When the listbox is closed, all arrow keys should open the listbox.
  NOTRUN defaultbutton: When the listbox is closed, the enter key should submit the form or do nothing.
  NOTRUN defaultbutton: When the listbox is open, the enter key should commit the selected option.
  NOTRUN defaultbutton: When the listbox is open, the tab key should close the listbox.
  NOTRUN custombutton: When the listbox is closed, spacebar should open the listbox.
  NOTRUN custombutton: When the listbox is closed, all arrow keys should open the listbox.
  NOTRUN custombutton: When the listbox is closed, the enter key should submit the form or do nothing.
  NOTRUN custombutton: When the listbox is open, the enter key should commit the selected option.
  NOTRUN custombutton: When the listbox is open, the tab key should close the listbox.
  ERROR /html/semantics/forms/the-select-element/stylable-select/select-keyboard-behavior.tentative.html - Test named 'defaultbutton: When the listbox is closed, spacebar should open the listbox.' specified 1 'cleanup' function, and 1 failed.
/html/semantics/forms/the-select-element/stylable-select/select-mouse-behavior.tentative.html
  FAIL fallbackbutton: Select with appearance:base-select should open and close when clicking the button. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
  FAIL fallbackbutton: Clicking an option in an appearance:base-select select should choose the option and close the popover. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
  FAIL custombutton: Select with appearance:base-select should open and close when clicking the button. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
  FAIL custombutton: Clicking an option in an appearance:base-select select should choose the option and close the popover. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
/html/semantics/forms/the-select-element/stylable-select/select-option-hover-styles.tentative.html
  FAIL Hover styles should be present for appearance:base-select options. - promise_test: Unhandled rejection with value: object "SyntaxError: Element.matches: ':open' is not a valid selector"
/html/semantics/forms/the-select-element/stylable-select/selectedoption.tentative.html
  FAIL The <selectedoption> element should reflect the HTML contents of the selected <option>. - promise_test: Unhandled rejection with value: object "TypeError: can't access property "innerHTML", selectedOption is null"
 0:36.72 INFO Got 6 unexpected results, with 0 unexpected passes
 0:36.73 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:9000
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8001
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8445
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8003
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8446
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8444
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8443
 0:36.98 wptserve INFO Stopped http server on 127.0.0.1:8002
 0:36.98 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 0:37.00 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 0:37.03 wptserve INFO Stopped http server on 127.0.0.1:8000
 0:37.13 INFO Removed font: Ahem.ttf
 0:37.15 INFO Closing logging queue
 0:37.15 INFO queue closed
 0:37.15 INFO Tolerating 6 unexpected results
[taskcluster 2024-09-04 17:31:52.551Z] === Task Finished ===
[taskcluster 2024-09-04 17:31:53.464Z] Successful task run with exit code: 0 completed in 110.843 seconds