[...]

 58450K .......... .......... .......... .......... .......... 98% 11.6M 0s
 58500K .......... .......... .......... .......... .......... 98% 10.9M 0s
 58550K .......... .......... .......... .......... .......... 98% 11.5M 0s
 58600K .......... .......... .......... .......... .......... 98% 10.8M 0s
 58650K .......... .......... .......... .......... .......... 98% 11.6M 0s
 58700K .......... .......... .......... .......... .......... 98% 10.9M 0s
 58750K .......... .......... .......... .......... .......... 98% 11.5M 0s
 58800K .......... .......... .......... .......... .......... 99% 11.6M 0s
 58850K .......... .......... .......... .......... .......... 99% 10.7M 0s
 58900K .......... .......... .......... .......... .......... 99% 11.6M 0s
 58950K .......... .......... .......... .......... .......... 99% 11.5M 0s
 59000K .......... .......... .......... .......... .......... 99% 10.8M 0s
 59050K .......... .......... .......... .......... .......... 99% 11.5M 0s
 59100K .......... .......... .......... .......... .......... 99% 10.7M 0s
 59150K .......... .......... .......... .......... .......... 99% 11.7M 0s
 59200K .......... .......... .......... .......... .......... 99% 11.5M 0s
 59250K .......... .......... .......... .......... .......... 99% 10.9M 0s
 59300K .......... .......... .......... .......... .......... 99% 11.5M 0s
 59350K .......... .......... .......... .......... ......    100% 11.1M=5.4s
2015-02-18 17:05:13 (10.7 MB/s) - 'boost_1_57_0.tar.bz2' saved [60821561/60821561]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/boost-1.57.0-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 python2 python3
Writing git revision for tag auto/ti/boost-1.57.0-2
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.22248
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_57_0
Begin-PLD-Builder-Info
Build-Time: user:15.73s sys:7.02s real:39.15s (faults io:191 non-io:395724)
Files queued for ftp:
  60718133 boost-1.57.0-2.src.rpm
       184 boost-1.57.0-2.src.rpm.uploadinfo
End-PLD-Builder-Info