autobuild[sn-devel-104]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-104) 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.sn-devel-104/2016-07-15-0003/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-07-15-0003/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-07-15-0003/samba.stdout
  
The top commit at the time of the failure was:

commit c3af7a377d5e298074123a621e849ddd29deadbd
Author: Volker Lendecke <vl at samba.org>
Date:   Thu Jun 23 13:24:02 2016 +0200

    lib: Allow NULL blob for messaging_send()
    
    ... something I've wanted to do for ages :-)
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Michael Adam <obnox at samba.org>
    
    Autobuild-User(master): Michael Adam <obnox at samba.org>
    Autobuild-Date(master): Thu Jul 14 20:50:15 CEST 2016 on sn-devel-144