From [PHPStan 1.9](https://github.com/phpstan/phpstan/releases/tag/1.9.0), PHPStan emits a warning regarding the use Xdebug extension. This breaks the extension. Note: The message might change in [future](https://github.com/phpstan/phpstan/pull/8343). I tried to filter out the lines of phpstan output by `!l.startsWith('!')`, but it didn't work.