autobuild[sn-devel-104]: intermittent test failure detected

The autobuild test system (on sn-devel-104) 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-104/2017-01-03-0806/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-104/2017-01-03-0806/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-104/2017-01-03-0806/samba.stdout
  
The top commit at the time of the failure was:

commit ec621945670bc023ad4a849f2e9af4eb8c299c20
Author: Volker Lendecke <[email protected]>
Date:   Fri Dec 30 11:51:37 2016 +0000

    winbind: Remove find_builtin_domain helper function
    
    There was only one caller, and the function was pretty small anyway.
    
    This makes a "git grep find_domain_from" more obvious :-)
    
    Signed-off-by: Volker Lendecke <[email protected]>
    Reviewed-by: Uri Simchoni <[email protected]>
    Reviewed-by: Andreas Schneider <[email protected]>
    
    Autobuild-User(master): Volker Lendecke <[email protected]>
    Autobuild-Date(master): Mon Jan  2 21:52:02 CET 2017 on sn-devel-144