public function onRunFailed(RunEvent $event)
    {
        $this->exceptions = array_merge($this->exceptions, $event->getRun()->getExceptions());
    }
public function onRunFailed(RunEvent $event)
    {
        $this->exceptions = array_merge($this->exceptions, $event->getRun()->getExceptions());
    }
public function onRunFailed ( RunEvent $ event ) { $ this -> exceptions = array_merge ( $ this -> exceptions , $ event -> getRun ( ) -> getExceptions ( ) ) ; }
Handle any errors returned from the child run

@param RunEvent $event
Handle any errors returned from the child run