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-144/2017-03-08-1504/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-03-08-1504/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-03-08-1504/samba.stdout
  
The top commit at the time of the failure was:

commit e015748657e9ee755b04f55f088c78bd025378cc
Author: Stefan Metzmacher <[email protected]>
Date:   Mon Mar 6 11:53:09 2017 +0000

    idmap_autorid: allocate new domain range if the callers knows the sid is valid
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=12613
    
    Signed-off-by: Stefan Metzmacher <[email protected]>
    Reviewed-by: Jeremy Allison <[email protected]>
    
    Autobuild-User(master): Jeremy Allison <[email protected]>
    Autobuild-Date(master): Wed Mar  8 04:06:59 CET 2017 on sn-devel-144