[...]

No conditional flags passed
from available:
--with   :	
--without:	 lxc python3 qemu
Available branches: master
Searching for tag auto/ti/python-libvirt-2.1.0-1...
Searching for tag auto/ti/python-libvirt-2_1_0-1...
--2016-08-22 11:24:53--  http://df.tld-linux.org/distfiles/by-md5/7/f/7f595fed5b9da18b07fd73beafd82ed2/libvirt-python-2.1.0.tar.gz
Resolving df.tld-linux.org (df.tld-linux.org)... 46.4.78.55
Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 170607 (167K) [application/x-gzip]
Saving to: 'libvirt-python-2.1.0.tar.gz'
     0K .......... .......... .......... .......... .......... 30% 1.38M 0s
    50K .......... .......... .......... .......... .......... 60% 3.13M 0s
   100K .......... .......... .......... .......... .......... 90% 5.58M 0s
   150K .......... ......                                     100% 6.12M=0.06s
2016-08-22 11:24:53 (2.61 MB/s) - 'libvirt-python-2.1.0.tar.gz' saved [170607/170607]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/python-libvirt-2.1.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 lxc python3 qemu
Writing git revision for tag auto/ti/python-libvirt-2.1.0-1
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.17185
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libvirt-python-2.1.0
Begin-TLD-Builder-Info
Build-Time: user:2.79s sys:1.02s real:4.46s (faults io:18 non-io:78730)
Files queued for ftp:
    175636 python-libvirt-2.1.0-1.src.rpm
       192 python-libvirt-2.1.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info