[...]

 26850K .......... .......... .......... .......... .......... 96% 2.08M 1s
 26900K .......... .......... .......... .......... .......... 96% 1.08M 1s
 26950K .......... .......... .......... .......... .......... 96% 1.07M 1s
 27000K .......... .......... .......... .......... .......... 96% 2.10M 1s
 27050K .......... .......... .......... .......... .......... 97% 2.11M 1s
 27100K .......... .......... .......... .......... .......... 97% 1.07M 1s
 27150K .......... .......... .......... .......... .......... 97% 2.11M 1s
 27200K .......... .......... .......... .......... .......... 97% 2.11M 1s
 27250K .......... .......... .......... .......... .......... 97% 1.07M 0s
 27300K .......... .......... .......... .......... .......... 97% 1.08M 0s
 27350K .......... .......... .......... .......... .......... 98% 2.05M 0s
 27400K .......... .......... .......... .......... .......... 98% 2.12M 0s
 27450K .......... .......... .......... .......... .......... 98% 1.07M 0s
 27500K .......... .......... .......... .......... .......... 98% 2.13M 0s
 27550K .......... .......... .......... .......... .......... 98% 2.11M 0s
 27600K .......... .......... .......... .......... .......... 98% 1.07M 0s
 27650K .......... .......... .......... .......... .......... 99% 2.12M 0s
 27700K .......... .......... .......... .......... .......... 99% 1.07M 0s
 27750K .......... .......... .......... .......... .......... 99% 2.13M 0s
 27800K .......... .......... .......... .......... .......... 99% 1.07M 0s
 27850K .......... .......... .......... .......... .......... 99% 2.13M 0s
 27900K .......... .......... .......... .....                100% 1.49M=21s
2014-04-09 08:44:55 (1.29 MB/s) - 'libvirt-1.2.3.tar.gz' saved [28605530/28605530]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libvirt-1.2.3-3.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Version: 1.2.3
Release: 3
tag: auto/ti/libvirt-1.2.3-3
Searching for tag auto/ti/libvirt-1.2.3-3...
Failed to add the host to the list of known hosts (/home/users/builder/.ssh/known_hosts).
To ssh://git@git.pld-linux.org/packages/libvirt
 * [new tag]         auto/ti/libvirt-1.2.3-3 -> auto/ti/libvirt-1.2.3-3
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean):  env -i TMP=/home/users/builder/tmp PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin HOME=/home/users/builder TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.49213
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libvirt-1.2.3
Begin-PLD-Builder-Info
Build-Time: user:1.87s sys:0.42s real:31.50s (faults io:0 non-io:398218)
Files queued for ftp:
  28581453 libvirt-1.2.3-3.src.rpm
       185 libvirt-1.2.3-3.src.rpm.uploadinfo
End-PLD-Builder-Info