[HUDSON-2997] no need to serialize this...

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15339 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/AbstractProject.java

@@ -580,7 +580,7 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
     protected abstract Class<R> getBuildClass();
 
     // keep track of the previous time we started a build
-    private long lastBuildStartTime;
+    private transient long lastBuildStartTime;
     
     /**
      * Creates a new build of this project for immediate execution.