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-144/2017-09-17-2113/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-09-17-2113/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-09-17-2113/samba.stdout
  
The top commit at the time of the failure was:

commit 563bbb9c24d1d0bcc64530a6635b8b82d1ebb24d
Author: Gary Lockyer <gary at catalyst.net.nz>
Date:   Fri Sep 8 14:03:25 2017 +1200

    util_runcmd: Free the fde in event handler.
    
    Free the fde in the event handler to prevent the event triggering again
    While not strictly necessary in this case, this code serves as an
    example of the usage of tfork.
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=13037
    
    Signed-off-by: Gary Lockyer <gary at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Ralph Boehme <slow at samba.org>
    
    Autobuild-User(master): Ralph Böhme <slow at samba.org>
    Autobuild-Date(master): Sat Sep 16 23:50:27 CEST 2017 on sn-devel-144