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-144/2018-01-14-1228/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-01-14-1228/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-01-14-1228/samba.stdout
  
The top commit at the time of the failure was:

commit 0eec2b6e049ae0acf62a5d704697fe31956ec5b7
Author: Garming Sam <garming at catalyst.net.nz>
Date:   Tue Jan 9 16:28:36 2018 +1300

    docs: Remove reference to environment variables for now
    
    Signed-off-by: Garming Sam <garming at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Stefan Metzmacher <metze at samba.org>
    Autobuild-Date(master): Sun Jan 14 03:08:01 CET 2018 on sn-devel-144