After updating phabricator and libphutil and arcanist I get
Call to undefined method PhutilTranslator::setLanguage()
`/opt/phabricator/src/infrastructure/env/PhabricatorEnv.php:119`
looks like it was [refactored](https://github.com/phacility/libphutil/commit/4252753ed7b959ab0a5c41c90d0c67a1fb90451f)