When serializing a Route, don't serialize the compiled route.

src/Symfony/Component/Routing/Route.php

@@ -18,7 +18,7 @@ namespace Symfony\Component\Routing;
  *
  * @api
  */
-class Route
+class Route implements \Serializable
 {
     private $pattern;
     private $defaults;
@@ -55,6 +55,25 @@ class Route
         $this->compiled = null;
     }
 
+    public function serialize()
+    {
+        return serialize(array(
+            'pattern' => $this->pattern,
+            'default' => $this->default,
+            'requirements' => $this->requirements,
+            'options' => $this->options,
+        ));
+    }
+
+    public function unserialize($data)
+    {
+        $data = unserialize($data);
+        $this->pattern = $data['pattern'];
+        $this->default = $data['default'];
+        $this->requirements = $data['requirements'];
+        $this->options = $data['options'];
+    }
+
     /**
      * Returns the pattern.
      *