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-144/2016-12-24-1508/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-24-1508/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-24-1508/samba.stdout
  
The top commit at the time of the failure was:

commit 77b51ba2f25e074bb57fb865d4fcf55243518568
Author: Garming Sam <garming at catalyst.net.nz>
Date:   Thu Dec 22 15:10:24 2016 +1300

    ldb_tdb: avoid erroneous error messages
    
    Signed-off-by: Garming Sam <garming at catalyst.net.nz>
    Reviewed-by: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
    
    Autobuild-User(master): Garming Sam <garming at samba.org>
    Autobuild-Date(master): Fri Dec 23 02:28:54 CET 2016 on sn-devel-144