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-144/2017-09-07-1213/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-09-07-1213/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-09-07-1213/samba.stdout
  
The top commit at the time of the failure was:

commit c938f61d332de0323cb135b201367f90f08d76a8
Author: Andrew Bartlett <abartlet at samba.org>
Date:   Thu Sep 7 11:26:04 2017 +1200

    python: Allow debug classes to be specified on the command line for python tools
    
    Signed-off-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Thu Sep  7 10:43:33 CEST 2017 on sn-devel-144