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-144/2018-01-08-1316/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-01-08-1316/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-01-08-1316/samba.stdout
  
The top commit at the time of the failure was:

commit fe164a08ddfee8efd802ed27a90f24e8afe2789a
Author: Jamie McClymont <jamiemcclymont at catalyst.net.nz>
Date:   Mon Jan 8 13:56:03 2018 +1300

    selftest: close connections after tests in samba4.ldap.secdesc.python
    
    This test suite had a memory impact of around 2.2GB, from LDAP connection
    handlers under the standard process model.
    
    Signed-off-by: Jamie McClymont <jamiemcclymont at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Garming Sam <garming at catalyst.net.nz>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Mon Jan  8 08:02:15 CET 2018 on sn-devel-144