WebNN: Retry createContext to avoid service connection error #57049
Community-TC (pull_request)
Collect results for all tests affected by a pull request in firefox.
Details
View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster
Task Status
Started: 2026-01-12T06:03:11.374Z
Resolved: 2026-01-12T06:10:06.352Z
Task Execution Time: 6 minutes, 54 seconds, 978 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0
Artifacts
- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
- public/results/wpt_report.json.gz
- public/results/wpt_screenshot.txt.gz
WPT Command: python3 ./wpt run --channel=nightly --no-fail-on-unexpected --log-wptreport=../artifacts/wpt_report.json --log-wptscreenshot=../artifacts/wpt_screenshot.txt --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 2026-01-12 06:03:11.452Z] Task ID: BtruGCp3SwOJrF1_4ymATw
[taskcluster 2026-01-12 06:03:11.452Z] Worker ID: 6307009767584424063
[taskcluster 2026-01-12 06:03:11.452Z] Worker Group: us-east4-a
[taskcluster 2026-01-12 06:03:11.452Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-12 06:03:11.452Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-12 06:03:11.452Z] Worker Version: 46.1.0
[taskcluster 2026-01-12 06:03:11.452Z] Public IP: 35.221.60.252
[taskcluster 2026-01-12 06:03:11.452Z] Hostname: proj-wpt-ci-fyyc7y46rocqg0iejvqeiq
[taskcluster 2026-01-12 06:03:12.516Z] === 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
...(37054 lines hidden)...
IdlInterface.prototype.test_member_attribute@https://web-platform.test:8443/resources/idlharness.js:2170:12
IdlInterface.prototype.test_members@https://web-platform.test:8443/resources/idlharness.js:2712:22
IdlInterface.prototype.test@https://web-platform.test:8443/resources/idlharness.js:1448:10
IdlArray.prototype.test@https://web-platform.test:8443/resources/idlharness.js:749:28
idl_test/</<@https://web-platform.test:8443/resources/idlharness.js:3546:31
FAIL WorkerNavigator interface: navigator must inherit property "ml" with the proper type - assert_inherits: property "ml" not found in prototype chain
IdlInterface.prototype.test_interface_of/<@https://web-platform.test:8443/resources/idlharness.js:2923:40
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
self.subsetTestByKey@https://web-platform.test:8443/resources/idlharness.js:44:14
IdlInterface.prototype.test_interface_of@https://web-platform.test:8443/resources/idlharness.js:2917:28
IdlInterface.prototype.test_object@https://web-platform.test:8443/resources/idlharness.js:2794:31
IdlArray.prototype.test/<@https://web-platform.test:8443/resources/idlharness.js:761:36
IdlArray.prototype.test@https://web-platform.test:8443/resources/idlharness.js:756:21
idl_test/</<@https://web-platform.test:8443/resources/idlharness.js:3546:31
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.serviceworker.html?npu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?npu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.html?gpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.html?cpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.serviceworker.html?gpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?gpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.html?npu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.sharedworker.html?npu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?npu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.html?gpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?gpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.serviceworker.html?cpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?cpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.html?cpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?cpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.html?npu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?npu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.sharedworker.html?gpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?gpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.sharedworker.html?cpu
FAIL assert_not_equals(navigator.ml, undefined, "ml property is defined on navigator") - assert_not_equals: ml property is defined on navigator got disallowed value undefined
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:29
Test.prototype.step@https://web-platform.test:8443/resources/testharness.js:2869:25
test@https://web-platform.test:8443/resources/testharness.js:633:30
@https://web-platform.test:8443/webnn/resources/utils_validation.js:194:5
@https://web-platform.test:8443/webnn/validation_tests/pooling-and-reduction-keep-dims.https.any.worker.js?cpu:10:14
FAIL Test global average pool operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
FAIL Test reduceMean operator's output shape for ResNetV2 50 model. - promise_test: Unhandled rejection with value: object "ReferenceError: MLGraphBuilder is not defined"
/webnn/validation_tests/unprintableNames.https.any.html?gpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.html?gpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.sharedworker.html?cpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.sharedworker.html?cpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.sharedworker.html?gpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.sharedworker.html?gpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.html?cpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.html?cpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.serviceworker.html?cpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.serviceworker.html?cpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.serviceworker.html?npu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.serviceworker.html?npu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.sharedworker.html?npu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.sharedworker.html?npu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.html?npu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.html?npu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.worker.html?npu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.worker.html?npu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.worker.html?gpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.worker.html?gpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.worker.html?cpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.worker.html?cpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
/webnn/validation_tests/unprintableNames.https.any.serviceworker.html?gpu
NOTRUN tensor names can include null bytes
ERROR /webnn/validation_tests/unprintableNames.https.any.serviceworker.html?gpu - Error: assert_implements: missing navigator.ml undefined
@https://web-platform.test:8443/webnn/validation_tests/unprintableNames.https.any.js:15:20
promise_setup/tests.promise_tests<@https://web-platform.test:8443/resources/testharness.js:1161:32
3:28.96 INFO Got 430 unexpected results, with 0 unexpected passes
3:28.97 wptserve INFO Stopped http server on 127.0.0.1:8000
3:28.98 wptserve INFO Stopped http server on 127.0.0.1:8002
3:28.98 wptserve INFO Stopped http server on 127.0.0.1:8001
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:8443
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:8444
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:8003
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:8446
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:9000
3:28.99 wptserve INFO Stopped http server on 127.0.0.1:8445
3:28.99 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
3:29.06 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
3:29.06 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
3:29.23 INFO Removed font: Ahem.ttf
3:29.26 INFO Closing logging queue
3:29.26 INFO queue closed
3:29.26 INFO Tolerating 430 unexpected results
[taskcluster 2026-01-12 06:10:04.358Z] === Task Finished ===
[taskcluster 2026-01-12 06:10:05.300Z] Successful task run with exit code: 0 completed in 413.848 seconds