22:23:31 1) MediaWiki\MassMessage\MassMessageJobTest::testLQTMessageSending 22:23:31 count(): Parameter must be an array or an object that implements Countable 22:23:31 22:23:31 /workspace/src/extensions/LiquidThreads/api/ApiThreadAction.php:233 22:23:31 /workspace/src/extensions/LiquidThreads/api/ApiThreadAction.php:55 22:23:31 /workspace/src/includes/api/ApiMain.php:1587 22:23:31 /workspace/src/includes/api/ApiMain.php:500 22:23:31 /workspace/src/extensions/MassMessage/includes/job/MassMessageJob.php:327 22:23:31 /workspace/src/extensions/MassMessage/includes/job/MassMessageJob.php:249 22:23:31 /workspace/src/extensions/MassMessage/includes/job/MassMessageJob.php:198 22:23:31 /workspace/src/extensions/MassMessage/includes/job/MassMessageJob.php:59 22:23:31 /workspace/src/extensions/MassMessage/tests/phpunit/job/MassMessageJobTest.php:29 22:23:31 /workspace/src/extensions/MassMessage/tests/phpunit/job/MassMessageJobTest.php:70 22:23:31 /workspace/src/tests/phpunit/MediaWikiTestCase.php:424 22:23:31 /workspace/src/maintenance/doMaintenance.php:94
https://integration.wikimedia.org/ci/job/quibble-vendor-mysql-php72-docker/299/consoleFull
Can be verified by commenting "check experimental" on a patch to trigger the PHP 7.2 job.