On a dummy change made to the Math extension (436237), a PHPUnit test is failling: Test report.
Seems the hamcrest test is looking for <span class="wbqc-status wbqc-status-warning"/> but the HTML item has a wbqc-status-todo class.
Note that in CI Math depends on Wikibase and thus there is a lot of dependencies:
mediawiki/extensions/Math mediawiki/extensions/BetaFeatures mediawiki/extensions/Capiunto mediawiki/extensions/CentralAuth mediawiki/extensions/CirrusSearch mediawiki/extensions/Cite mediawiki/extensions/Echo mediawiki/extensions/EducationProgram mediawiki/extensions/Elastica mediawiki/extensions/EventLogging mediawiki/extensions/GeoData mediawiki/extensions/MwEmbedSupport mediawiki/extensions/PdfHandler mediawiki/extensions/PropertySuggester mediawiki/extensions/Scribunto mediawiki/extensions/SiteMatrix mediawiki/extensions/SyntaxHighlight_GeSHi mediawiki/extensions/TimedMediaHandler mediawiki/extensions/VisualEditor mediawiki/extensions/WikiEditor mediawiki/extensions/Wikibase mediawiki/extensions/WikibaseQuality mediawiki/extensions/WikibaseQualityConstraints mediawiki/extensions/WikimediaBadges mediawiki/extensions/cldr