autobuild[sn-devel-144]: intermittent test failure detected

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-144/2017-01-30-1815/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-01-30-1815/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-01-30-1815/samba.stdout
  
The top commit at the time of the failure was:

commit 73deaecbd598dcda5b213c07bf9593fca2290c72
Author: David Mulder <[email protected]>
Date:   Mon Jan 23 14:44:03 2017 -0700

    s3:winbindd: document "winbind:ignore domains"
    
    The "winbind:ignore domains" smb.conf option is undocumented but used frequently.
    
    Signed-off-by: David Mulder <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Andrew Bartlett <[email protected]>
    
    Autobuild-User(master): Ralph Böhme <[email protected]>
    Autobuild-Date(master): Mon Jan 30 12:24:47 CET 2017 on sn-devel-144