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-144/2017-05-02-2029/flakey.log

The samba build logs are available here:

   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-05-02-2029/samba.stderr
   http://git.samba.org/autobuild.flakey.sn-devel-144/2017-05-02-2029/samba.stdout
  
The top commit at the time of the failure was:

commit 09bc5b5374227a555f580c3d7c1d82f15bb818bc
Author: Alexander Bokovoy <ab at samba.org>
Date:   Thu Sep 29 00:09:12 2016 +0300

    systemd: fix detection of libsystemd
    
    On Fedora 25 detection of libsystemd actually fails due to wrong
    assumptions in the configure test. conf.CHECK_LIB returns a list
    so 'not conf.CHECK_LIB(...)' is always False and we never get to check
    libsystemd.
    
    Instead, remember result of checking pkg-config for separate
    libsystemd-daemon and libsystemd-journal libraries. If they miss,
    attempt to use libsystemd library instead.
    
    Signed-off-by: Alexander Bokovoy <ab at samba.org>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Tue May  2 13:05:43 CEST 2017 on sn-devel-144