Seen in https://integration.wikimedia.org/ci/job/integration-quibble-fullrun-extensions/44/console
ext.graph.visualEditor ✔ ve.dm.MWGraphNode ✔ ve.ce.MWGraphNode 26 02 2022 17:35:04.988:DEBUG [middleware:source-files]: Requesting /load.php?modules=ext.graph.vega2&version=1viu2 26 02 2022 17:35:04.988:DEBUG [middleware:source-files]: Fetching /load.php 26 02 2022 17:35:04.988:DEBUG [proxy]: proxying request - /load.php?modules=ext.graph.vega2&version=1viu2 to 127.0.0.1:9413 26 02 2022 17:35:04.989:DEBUG [middleware:source-files]: Requesting /wiki/Special:JavaScriptTest/qunit/export 26 02 2022 17:35:04.989:DEBUG [middleware:source-files]: Fetching /wiki/Special:JavaScriptTest/qunit/export 26 02 2022 17:35:04.989:DEBUG [proxy]: proxying request - /wiki/Special:JavaScriptTest/qunit/export to 127.0.0.1:9413 26 02 2022 17:35:04.990:DEBUG [middleware:source-files]: Requesting /wiki/Special:JavaScriptTest/qunit/export 26 02 2022 17:35:04.990:DEBUG [middleware:source-files]: Fetching /wiki/Special:JavaScriptTest/qunit/export 26 02 2022 17:35:04.990:DEBUG [proxy]: proxying request - /wiki/Special:JavaScriptTest/qunit/export to 127.0.0.1:9413 26 02 2022 17:35:04.991:DEBUG [middleware:source-files]: Requesting /extensions/Graph/includes/ajax-loader.gif?b3af8 26 02 2022 17:35:04.991:DEBUG [middleware:source-files]: Fetching /extensions/Graph/includes/ajax-loader.gif 26 02 2022 17:35:04.991:DEBUG [proxy]: proxying request - /extensions/Graph/includes/ajax-loader.gif?b3af8 to 127.0.0.1:9413 ✔ ve.ce.MWGraphNode.static ✔ ve.dm.MWGraphModel ✖ ve.dm.MWGraphModel.static testrunner-hooks-after ✔ `after` hook for module `testrunner-hooks` was executed 26 02 2022 17:35:05.060:DEBUG [Chrome Headless 90.0.4430.212 (Linux x86_64)]: EXECUTING -> CONNECTED 26 02 2022 17:35:05.063:DEBUG [launcher]: CAPTURED -> BEING_KILLED 26 02 2022 17:35:05.063:DEBUG [launcher]: BEING_KILLED -> BEING_FORCE_KILLED 26 02 2022 17:35:05.063:DEBUG [Chrome Headless 90.0.4430.212 (Linux x86_64)]: CONNECTED -> DISCONNECTED Finished in 30.629 secs / 30.094 secs @ 17:35:05 GMT+0000 (Coordinated Universal Time) SUMMARY: ✔ 1825 tests completed ℹ 11 tests skipped ✖ 1 test failed FAILED TESTS: ext.graph.visualEditor ✖ ve.dm.MWGraphModel.static Chrome Headless 90.0.4430.212 (Linux x86_64) The value provided to `assert.throws` in "ve.dm.MWGraphModel.static" was not a function. at Object.<anonymous> (http://localhost:9876/load.php?modules=mediawiki.language.testdata%7Cmediawiki.libs.guiders%2Cjpegmeta%2Cpluralruleparser%7Cmediawiki.messagePoster%2Cpulsatingdot%2Cqunit-testrunner%2Crouter%2Cstorage%2Ctemplate%2Ctoc%2Cuser%2Cutil%2Cviewport%2CvisibleTimeout%2Cwidgets%7Cmediawiki.page.gallery.styles%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.rcfilters.filters.ui%7Cmediawiki.skinning.content.parsoid%7Cmediawiki.special.recentchanges%7Cmediawiki.template.handlebars%2Cmustache%2Cvue%7Cmediawiki.ui.button%2Cicon%7Cmediawiki.widgets.AbandonEditDialog%2CCategoryMultiselectWidget%2CDateInputWidget%2CMediaSearch%2CTable%2CUserInputWidget%2Cstyles%7Cmediawiki.widgets.DateInputWidget.styles%7Cmobile.ooui.icons%7Cmobile.pagelist.styles%7Cmobile.pagesummary.styles%7Cmobile.placeholder.images%7Cmobile.startup%7Cmobile.startup.images%7Cmoment%2Coojs%2Coojs-router%2Coojs-ui%2Coojs-ui-core%2Coojs-ui-toolbars%2Coojs-ui-widgets%2Coojs-ui-windows%2Cpapaparse%2Crangefix%2Csinonjs%2Cspark-md5%2CtreeDiffer%2Cunicodejs%2CvalueFormatters%2CvalueParsers%7Cmw.config.values.wbDataTypes%2CwbRefTabsEnabled%2CwbRepo%2CwbSiteDetails%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-toolbars.icons%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.icons-accessibility%2Cicons-alerts%2Cicons-content%2Cicons-editing-advanced%2Cicons-editing-citation%2Cicons-editing-core%2Cicons-editing-list%2Cicons-editing-styling%2Cicons-interactions%2Cicons-layout%2Cicons-media%2Cicons-moderation%2Cicons-movement%2Cicons-user%2Cicons-wikimedia%2Cindicators%7Cskins.minerva.messageBox.styles%7Csocket.io%7Ctest.ArticlePlaceholder%2CCentralAuth%2CCite%2CEcho%2CEventLogging%2CFlow%2CGraph%2CGrowthExperiments%2CGuidedTour%2CMediaWiki%2CMinervaNeue%2CTemplateData%2CUniversalLanguageSelector%2CVisualEditor%2CWikiEditor%2CWikibaseClient%2CWikibaseLexeme%2CWikibaseRepository%2CWikimediaEvents%7Cutil.ContentLanguages%2CExtendable%2CMessageProvider%2CMessageProviders%2CNotifier%2ChighlightSubstring%2Cinherit&version=1wggu:1472:898) at runTest (node_modules/qunit/qunit/qunit.js:2496:35) at Test.run (node_modules/qunit/qunit/qunit.js:2479:9) at node_modules/qunit/qunit/qunit.js:2770:16 at processTaskQueue (node_modules/qunit/qunit/qunit.js:2051:26) at node_modules/qunit/qunit/qunit.js:2055:13
Happens deterministically. Not sure why. The job in question is a CI check for Quibble using a set of cloned extensions, so it is similar to what is being run in "normal" CI for MediaWiki core/extensions/skins.