There was 1 failure:

1) Wikibase\Test\EditEntityTest::testAttemptSaveWithLateConflict
saving should have failed late, with a indication of a mismatching current ID
Failed asserting that true is false.

/home/jeroen/www/phase3/extensions/Wikibase/repo/tests/phpunit/includes/EditEntityTest.php:246
/home/jeroen/www/phase3/tests/phpunit/MediaWikiTestCase.php:75
/home/jeroen/www/phase3/tests/phpunit/MediaWikiPHPUnitCommand.php:45
/home/jeroen/www/phase3/tests/phpunit/phpunit.php:107