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

[autobuild]

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-104/2016-03-24-2008/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-03-24-2008/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-03-24-2008/samba.stdout
  
The top commit at the time of the failure was:

commit d64877541036c6b82aa0204671bfdae08936b529
Author: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
Date:   Wed Mar 23 15:30:22 2016 +1300

    third_party/zlib/zlib.h: use HAVE___ATTRIBUTE__ instead of __GNUC__
    
    Signed-off-by: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Uri Simchoni <uri at samba.org>
    
    Autobuild-User(master): Uri Simchoni <uri at samba.org>
    Autobuild-Date(master): Thu Mar 24 18:43:34 CET 2016 on sn-devel-144