Currently a test constantly fails on Jenkins. I can reproduce it with an updated core:
1) Wikibase\Test\Api\BotEditTest::testBotEdits with data set #1 (array('Empty', 'wbsetlabel', 'en', 'ALabel2'), array(false)) Must not have a 'bot' key in the rc-entry of the result from the API Failed asserting that false is true. /var/www/mediawiki/core/extensions/Wikibase/repo/tests/phpunit/includes/api/BotEditTest.php:156 /var/www/mediawiki/core/tests/phpunit/MediaWikiTestCase.php:131
https://integration.wikimedia.org/ci/job/mwext-Wikibase-repo-tests-mysql-hhvm/458/console