autobuild: intermittent test failure detected

[autobuild]

The autobuild test system 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/2015-05-05-1348/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey/2015-05-05-1348/samba.stderr
   http://git.samba.org/autobuild.flakey/2015-05-05-1348/samba.stdout
  
The top commit at the time of the failure was:

commit 38beef2ff63664d7d5805f1032bb9f69d0b965d7
Author: Uri Simchoni <urisimchoni at gmail.com>
Date:   Sat May 2 13:44:53 2015 +0300

    libads: Fix deadlock when re-joining a domain and updating keytab
    
    When updating the system keytab as a result of joining a domain,
    if the keytb had prior entries, ads_keytab_create_default tries to
    update those entries. However, it starts updating before freeing the
    cursor which was used for finding those entries, and hence causes
    an an attempt to write-lock the keytab while a read-lock exists.
    
    To reproduce configure smb.conf for ads domain member and run this twice:
    net ads join -U <credentials> '--option=kerberos method=secrets and keytab'
    
    Signed-off-by: Uri Simchoni <urisimchoni at gmail.com>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Mon May  4 21:01:41 CEST 2015 on sn-devel-104