update2

pfosten/vendor/symfony/console/Event/ConsoleCommandEvent.php

@@ -25,8 +25,6 @@ class ConsoleCommandEvent extends ConsoleEvent
 
     /**
      * Indicates if the command should be run or skipped.
-     *
-     * @var bool
      */
     private $commandShouldRun = true;
 

pfosten/vendor/symfony/console/Event/ConsoleErrorEvent.php

@@ -51,7 +51,7 @@ final class ConsoleErrorEvent extends ConsoleEvent
     public function setError($error)
     {
         if (!$error instanceof \Throwable && !$error instanceof \Exception) {
-            throw new InvalidArgumentException(sprintf('The error passed to ConsoleErrorEvent must be an instance of \Throwable or \Exception, "%s" was passed instead.', is_object($error) ? get_class($error) : gettype($error)));
+            throw new InvalidArgumentException(sprintf('The error passed to ConsoleErrorEvent must be an instance of \Throwable or \Exception, "%s" was passed instead.', \is_object($error) ? \get_class($error) : \gettype($error)));
         }
 
         $this->error = $error;
@@ -78,6 +78,6 @@ final class ConsoleErrorEvent extends ConsoleEvent
      */
     public function getExitCode()
     {
-        return null !== $this->exitCode ? $this->exitCode : ($this->error->getCode() ?: 1);
+        return null !== $this->exitCode ? $this->exitCode : (\is_int($this->error->getCode()) && 0 !== $this->error->getCode() ? $this->error->getCode() : 1);
     }
 }

pfosten/vendor/symfony/console/Event/ConsoleExceptionEvent.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Console\Event;
 
-@trigger_error(sprintf('The "%s" class is deprecated since version 3.3 and will be removed in 4.0. Use the ConsoleErrorEvent instead.', ConsoleExceptionEvent::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 3.3 and will be removed in 4.0. Use the ConsoleErrorEvent instead.', ConsoleExceptionEvent::class), E_USER_DEPRECATED);
 
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;