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/2015-05-28-0529/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey/2015-05-28-0529/samba.stderr
   http://git.samba.org/autobuild.flakey/2015-05-28-0529/samba.stdout
  
The top commit at the time of the failure was:

commit ce4830e00a62b16adc344107e2d5dc5e85588be3
Author: Matthieu Patou <mat at matws.net>
Date:   Sat May 23 00:02:42 2015 -0700

    Fix segfault in the very rare case when we are not able to find the rootnamingcontext
    
    Signed-off-by: Matthieu Patou <mat at matws.net>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    Change-Id: I96fd5c7f39280090d5ec1dcdcb445fd7a44bd1c6
    
    Autobuild-User(master): Matthieu Patou <mat at samba.org>
    Autobuild-Date(master): Wed May 27 18:40:35 CEST 2015 on sn-devel-104