See <http://deadlock.netbeans.org/hudson/job/push-core-main/20032/>
------------------------------------------
Started by timer
Building remotely on Push-to-Silver-Node
FATAL: cannot assign instance of hudson.model.StreamBuildListener to field hudson.plugins.mercurial.MercurialSCM$1.val$listener of type hudson.model.BuildListener in instance of hudson.plugins.mercurial.MercurialSCM$1
java.lang.ClassCastException: cannot assign instance of hudson.model.StreamBuildListener to field hudson.plugins.mercurial.MercurialSCM$1.val$listener of type hudson.model.BuildListener in instance of hudson.plugins.mercurial.MercurialSCM$1
	at java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(ObjectStreamClass.java:2039)
	at java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1212)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1952)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at hudson.remoting.UserRequest.deserialize(UserRequest.java:178)
	at hudson.remoting.UserRequest.perform(UserRequest.java:98)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:283)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

<scm class="hudson.plugins.mercurial.MercurialSCM">
  <installation>default Mercurial with caching</installation>
  <source>http://hg.netbeans.org/main-silver/</source>
  <modules></modules>
  <clean>false</clean>
  <forest>false</forest>
  <browser class="hudson.plugins.mercurial.browser.HgWeb">
    <url>http://hg.netbeans.org/main-silver/</url>
  </browser>
</scm>