[...]

 82250K .......... .......... .......... .......... .......... 98% 33.6M 0s
 82300K .......... .......... .......... .......... .......... 98% 95.8M 0s
 82350K .......... .......... .......... .......... .......... 99% 66.9M 0s
 82400K .......... .......... .......... .......... .......... 99% 43.5M 0s
 82450K .......... .......... .......... .......... .......... 99% 67.4M 0s
 82500K .......... .......... .......... .......... .......... 99% 72.3M 0s
 82550K .......... .......... .......... .......... .......... 99% 39.0M 0s
 82600K .......... .......... .......... .......... .......... 99% 70.7M 0s
 82650K .......... .......... .......... .......... .......... 99% 71.6M 0s
 82700K .......... .......... .......... .......... .......... 99% 38.9M 0s
 82750K .......... .......... .......... .......... .......... 99% 63.8M 0s
 82800K .......... .......... .......... .......... .......... 99% 76.9M 0s
 82850K .......... .......... .......... .......... .......... 99% 67.3M 0s
 82900K .......... .......... .......... .......... .......... 99% 39.8M 0s
 82950K .......... .......... .......... .......... .......... 99% 69.8M 0s
 83000K .......... .......... .......... .......... .......... 99% 75.7M 0s
 83050K .......... .......... .......... .......... .......... 99% 38.6M 0s
 83100K .......... .......... .......... .......... .......... 99% 67.2M 0s
 83150K .......... .......... .......... .......... .......... 99% 75.0M 0s
 83200K .....                                                 100%  186M=1.6s
2017-04-04 11:05:49 (51.4 MB/s) - 'boost_1_61_0.tar.bz2' saved [85202254/85202254]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/boost-1.61.0-6.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-1.61.0-6
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.18166
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_61_0
Begin-TLD-Builder-Info
Build-Time: user:3.89s sys:0.92s real:46.59s (faults io:95 non-io:140392)
Files queued for ftp:
  85078306 boost-1.61.0-6.src.rpm
       184 boost-1.61.0-6.src.rpm.uploadinfo
End-TLD-Builder-Info