Escaped Mutant for Mutator "FunctionCallRemoval": --- Original +++ New @@ @@ public function execute(string $name, callable $callback, int $timeout = 0) { $mutex = $this->mutexFactory->createAndAcquire($name, $timeout); - set_error_handler(static function (int $severity, string $message, string $file, int $line) : bool { - if (!(error_reporting() & $severity)) { - // This error code is not included in error_reporting. - return true; - } - throw new ErrorException($message, $severity, $severity, $file, $line); - }); + try { /** @var mixed $result */ return $callback();