/**
  * Listens to "outline.after" event.
  *
  * @param   Behat\Behat\Event\ScenarioEvent     $event
  */
 public function afterOutline(OutlineEvent $event)
 {
     if (StepEvent::FAILED === $event->getResult()) {
         $outline = $event->getOutline();
         $this->writeln($outline->getFile() . ':' . $outline->getLine());
     }
 }