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-144/2017-02-01-0407/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-01-0407/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-02-01-0407/samba.stdout
  
The top commit at the time of the failure was:

commit 39ac4ae65eb3b8d4d3574987eab47eb7a290f2e4
Author: Amitay Isaacs <amitay at gmail.com>
Date:   Tue Jan 31 16:49:14 2017 +1100

    ctdb-tests: Use replace headers instead of system headers
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=12469
    
    This ensures that PTHREAD_MUTEX_ROBUST, pthread_mutexattr_setrobust()
    and pthread_mutex_consistent() are always defined.
    
    Signed-off-by: Amitay Isaacs <amitay at gmail.com>
    Reviewed-by: Stefan Metzmacher <metze at samba.org>
    
    Autobuild-User(master): Stefan Metzmacher <metze at samba.org>
    Autobuild-Date(master): Tue Jan 31 11:57:01 CET 2017 on sn-devel-144