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-144/2017-02-12-1816/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-12-1816/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-12-1816/samba.stdout
  
The top commit at the time of the failure was:

commit 77b37e937299224eb0750be1f4b1cb487c6c0070
Author: Andrew Bartlett <[email protected]>
Date:   Wed Feb 1 14:13:28 2017 +1300

    lib/util: Remove ntstatus.h and string_wrappers.h include from samba_util.h
    
    These are not low-level headers that we need everywhere.
    
    Signed-off-by: Andrew Bartlett <[email protected]>
    Pair-programmed-with: Bob Campbell <[email protected]>
    Reviewed-by: Garming Sam <[email protected]>
    
    Autobuild-User(master): Andrew Bartlett <[email protected]>
    Autobuild-Date(master): Sat Feb 11 11:40:45 CET 2017 on sn-devel-144