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-144/2017-12-15-0719/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-12-15-0719/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-12-15-0719/samba.stdout
  
The top commit at the time of the failure was:

commit 964bc8d19aa695f6c5188ab1a941127a259c0bc8
Author: Garming Sam <garming at catalyst.net.nz>
Date:   Thu Nov 23 17:06:53 2017 +1300

    markdown: Rename ms_markdown.py -> ms_schema_markdown.py
    
    We also reduce the scope of the import so that python-markdown is only
    required if interacting with 2012 code.
    
    Signed-off-by: Garming Sam <garming at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Thu Dec 14 12:34:04 CET 2017 on sn-devel-144