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-144/2017-01-26-0617/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-01-26-0617/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-01-26-0617/samba.stdout
  
The top commit at the time of the failure was:

commit 2cf141ed45b4f7b7754cb9525d987ff38495d789
Author: Uri Simchoni <uri at samba.org>
Date:   Thu Jan 19 07:46:57 2017 +0200

    waf: backport finding of pkg-config
    
    Allow the builder to customize the location of pkg-config
    utility by setting PKGCONFIG environment variable.
    
    This is backported from upstream waf.
    
    Thanks to Zentaro Kavanagh <zentaro at google.com> for
    pointing that out and proposing the fix.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=12529
    
    Signed-off-by: Uri Simchoni <uri at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Wed Jan 25 04:23:00 CET 2017 on sn-devel-144