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-144/2016-12-16-2054/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-16-2054/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-16-2054/samba.stdout
  
The top commit at the time of the failure was:

commit e7ab2ad887f4e5ef54afa14492541b6b3b2b1d8b
Author: Björn Jacke <[email protected]>
Date:   Fri Dec 16 11:16:56 2016 +0100

    pam_winbind: Fix compiler warnings
    
    Thanks to Stef Walter <[email protected]>
    
    BUG: http://bugzilla.samba.org/show_bug.cgi?id=8888
    
    Signed-off-by: Bjoern Jacke <[email protected]>
    Reviewed-by: Stefan Metzmacher <[email protected]>
    
    Autobuild-User(master): Björn Jacke <[email protected]>
    Autobuild-Date(master): Fri Dec 16 16:22:32 CET 2016 on sn-devel-144