[...]

No conditional flags passed
from available:
--with   :	
--without:	 lxc python3 qemu
Available branches: master
Searching for tag auto/ti/python-libvirt-4.3.0-1...
Searching for tag auto/ti/python-libvirt-4_3_0-1...
--2018-05-19 00:13:26--  http://df.tld-linux.org/distfiles/by-md5/2/e/2ea5f1871358e6a5788b52c2e1a0b809/libvirt-python-4.3.0.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: 187111 (183K) [application/x-gzip]
Saving to: 'libvirt-python-4.3.0.tar.gz'
     0K .......... .......... .......... .......... .......... 27% 24.3M 0s
    50K .......... .......... .......... .......... .......... 54% 30.0M 0s
   100K .......... .......... .......... .......... .......... 82%  262M 0s
   150K .......... .......... .......... ..                   100% 47.5M=0.004s
2018-05-19 00:13:26 (39.7 MB/s) - 'libvirt-python-4.3.0.tar.gz' saved [187111/187111]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/python-libvirt-4.3.0-1.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-4.3.0-1
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.64182
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libvirt-python-4.3.0
Begin-TLD-Builder-Info
Build-Time: user:0.87s sys:0.22s real:1.62s (faults io:0 non-io:96588)
Files queued for ftp:
    192348 python-libvirt-4.3.0-1.src.rpm
       192 python-libvirt-4.3.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info