autobuild[sn-devel-104]: intermittent test failure detected

The autobuild test system (on sn-devel-104) 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-104/2016-12-01-0407/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-12-01-0407/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-104/2016-12-01-0407/samba.stdout
  
The top commit at the time of the failure was:

commit c98bdf24941ad95250d79eeed26c57d600cedc7b
Author: Douglas Bagnall <[email protected]>
Date:   Wed Nov 30 14:56:16 2016 +1300

    smbd/service_stream: connection processing flag is not really bool
    
    The warning is:
    
    ../source4/smbd/service_stream.c: In function ‘stream_io_handler’:
    ../source4/smbd/service_stream.c:94:18: warning: increment of a boolean expression [-Wbool-operation]
      conn->processing++;
                        ^~
    ../source4/smbd/service_stream.c:100:18: warning: decrement of a boolean expression [-Wbool-operation]
      conn->processing--;
                        ^~
    
    while the code in question looks like:
    
    	conn->processing++;
    	if (flags & TEVENT_FD_WRITE) {
    		conn->ops->send_handler(conn, flags);
    	} else if (flags & TEVENT_FD_READ) {
    		conn->ops->recv_handler(conn, flags);
    	}
    	conn->processing--;
    
    If this is never going to be nested, processing can be bool and the ++
    and -- can be true/false assignments. But it seems possible that these
    might be nested so it is better to go the other way.
    
    Signed-off-by: Douglas Bagnall <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    
    Autobuild-User(master): Ralph Böhme <[email protected]>
    Autobuild-Date(master): Thu Dec  1 00:28:05 CET 2016 on sn-devel-144