autobuild[sn-devel-144]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-144) 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-144/2016-07-15-0718/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-07-15-0718/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-07-15-0718/samba.stdout
  
The top commit at the time of the failure was:

commit 91a17e54136c1ad143d8b740ea7c7592cd8a6a8d
Author: Volker Lendecke <vl at samba.org>
Date:   Wed Jul 22 11:19:08 2015 +0200

    tdb: Don't malloc for every record in traverse
    
    This gains a few percent in tdbbackup
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Michael Adam <obnox at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Fri Jul 15 00:52:00 CEST 2016 on sn-devel-144