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-144/2016-12-20-1016/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-20-1016/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2016-12-20-1016/samba.stdout
  
The top commit at the time of the failure was:

commit 0bb3490329310e81147c56f42fa7b07350cfb384
Author: Stefan Metzmacher <[email protected]>
Date:   Fri Oct 28 12:14:37 2016 +0200

    s3:user_auth_info: let struct user_auth_info use struct cli_credentials internally
    
    This way we can have a very simple get_cmdline_auth_info_creds() function,
    which can be used pass cli_credentials down the stack instead of
    constantly translating from user_auth_info to cli_credentials, while
    loosing information.
    
    Signed-off-by: Stefan Metzmacher <[email protected]>
    Reviewed-by: Andrew Bartlett <[email protected]>
    
    Autobuild-User(master): Andrew Bartlett <[email protected]>
    Autobuild-Date(master): Tue Dec 20 04:57:05 CET 2016 on sn-devel-144