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-144/2017-10-04-0410/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-10-04-0410/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-10-04-0410/samba.stdout
  
The top commit at the time of the failure was:

commit 064e17c0d6934f685c075abe0cf4913fa20d3a94
Author: Ralph Boehme <slow at samba.org>
Date:   Sat Sep 30 08:45:41 2017 +0200

    net: groupmap cleanup should not delete BUILTIN mappings
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=13065
    
    Signed-off-by: Ralph Boehme <slow at samba.org>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Mon Oct  2 15:17:00 CEST 2017 on sn-devel-144