autobuild: intermittent test failure detected

[autobuild]

The autobuild test system has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   http://git.samba.org/autobuild.flakey/2015-06-12-1938/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey/2015-06-12-1938/samba.stderr
   http://git.samba.org/autobuild.flakey/2015-06-12-1938/samba.stdout
  
The top commit at the time of the failure was:

commit b3a18d66c00dba73a3f56a6f95781b4d34db1fe2
Author: Stefan Metzmacher <metze at samba.org>
Date:   Tue Jun 2 12:43:17 2015 +0200

    ctdb-locking: move all auto_mark logic into process_callbacks()
    
    The caller should not dereference lock_ctx after invoking
    process_callbacks(), it might be destroyed already.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=11293
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Amitay Isaacs <amitay at gmail.com>
    
    Autobuild-User(master): Amitay Isaacs <amitay at samba.org>
    Autobuild-Date(master): Fri Jun 12 15:28:57 CEST 2015 on sn-devel-104