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-144/2017-07-03-0314/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-07-03-0314/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-07-03-0314/samba.stdout
  
The top commit at the time of the failure was:

commit 0cfef7f50efcb5e1c9d1c35e54c29796b6aabe26
Author: Andrew Bartlett <abartlet at samba.org>
Date:   Sat Jul 1 22:20:17 2017 +1200

    selftest: Prime the netlogon cache during test_idmap_rfc2307
    
    This ensures that the group memberships just created are reflected in the test
    comparison.  Otherwise we are trusting that no caches are primed, which is
    simply not safe in a test.
    
    (The login will put a list of groups, as obtained by the login over NETLOGON or
    via the PAC, into the samlogon cache).
    
    Signed-off-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Stefan Metzmacher <metze at samba.org>
    
    Autobuild-User(master): Stefan Metzmacher <metze at samba.org>
    Autobuild-Date(master): Sun Jul  2 21:59:18 CEST 2017 on sn-devel-144