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-144/2018-03-29-0221/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-03-29-0221/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2018-03-29-0221/samba.stdout
  
The top commit at the time of the failure was:

commit 1cd0fe90cf642de4ab4d03819f87a13c20bd2805
Author: Volker Lendecke <vl at samba.org>
Date:   Mon Mar 26 12:02:01 2018 +0200

    ndr_string: Do overflow checks in ndr_push/pull_charset
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Wed Mar 28 16:08:16 CEST 2018 on sn-devel-144