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-104/2016-09-06-0330/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-09-06-0330/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-09-06-0330/samba.stdout
  
The top commit at the time of the failure was:

commit 7c84cb54fc34bdd1c4d79cd6b588256c9bacc705
Author: Stefan Metzmacher <metze at samba.org>
Date:   Fri Sep 2 17:23:28 2016 +0200

    wafsamba: add -Werror=format-security to the developer build
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Mon Sep  5 20:23:00 CEST 2016 on sn-devel-144