[...]

 27750K .......... .......... .......... .......... .......... 96% 6.50M 0s
 27800K .......... .......... .......... .......... .......... 96% 10.9M 0s
 27850K .......... .......... .......... .......... .......... 97% 7.34M 0s
 27900K .......... .......... .......... .......... .......... 97% 10.1M 0s
 27950K .......... .......... .......... .......... .......... 97% 9.82M 0s
 28000K .......... .......... .......... .......... .......... 97% 6.44M 0s
 28050K .......... .......... .......... .......... .......... 97% 8.78M 0s
 28100K .......... .......... .......... .......... .......... 98% 9.49M 0s
 28150K .......... .......... .......... .......... .......... 98% 8.57M 0s
 28200K .......... .......... .......... .......... .......... 98% 8.91M 0s
 28250K .......... .......... .......... .......... .......... 98% 8.18M 0s
 28300K .......... .......... .......... .......... .......... 98% 8.94M 0s
 28350K .......... .......... .......... .......... .......... 98% 8.77M 0s
 28400K .......... .......... .......... .......... .......... 99% 9.16M 0s
 28450K .......... .......... .......... .......... .......... 99% 9.15M 0s
 28500K .......... .......... .......... .......... .......... 99% 7.69M 0s
 28550K .......... .......... .......... .......... .......... 99% 9.80M 0s
 28600K .......... .......... .......... .......... .......... 99% 8.34M 0s
 28650K .......... .......... .......... .......... .......... 99% 8.42M 0s
 28700K .......... .......... ...                             100% 8.85M=4.4s
2015-08-25 08:31:44 (6.35 MB/s) - 'libvirt-1.2.18.tar.gz' saved [29412554/29412554]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libvirt-1.2.18-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 vserver
--without:	 ceph esx glusterfs hyperv libxl lxc netcf openvz phyp polkit qemu sanlock static_libs systemtap uml vbox vmware xen xenapi
Writing git revision for tag auto/ti/libvirt-1.2.18-1
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.70896
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libvirt-1.2.18
Begin-PLD-Builder-Info
Build-Time: user:11.62s sys:4.79s real:21.87s (faults io:1 non-io:426053)
Files queued for ftp:
  29376275 libvirt-1.2.18-1.src.rpm
       186 libvirt-1.2.18-1.src.rpm.uploadinfo
End-PLD-Builder-Info