[...]

 79100K .......... .......... .......... .......... .......... 98% 67.8M 0s
 79150K .......... .......... .......... .......... .......... 98% 68.4M 0s
 79200K .......... .......... .......... .......... .......... 98% 66.4M 0s
 79250K .......... .......... .......... .......... .......... 99% 42.5M 0s
 79300K .......... .......... .......... .......... .......... 99% 58.3M 0s
 79350K .......... .......... .......... .......... .......... 99% 65.3M 0s
 79400K .......... .......... .......... .......... .......... 99% 63.4M 0s
 79450K .......... .......... .......... .......... .......... 99% 64.1M 0s
 79500K .......... .......... .......... .......... .......... 99% 47.3M 0s
 79550K .......... .......... .......... .......... .......... 99% 39.1M 0s
 79600K .......... .......... .......... .......... .......... 99% 79.1M 0s
 79650K .......... .......... .......... .......... .......... 99% 63.6M 0s
 79700K .......... .......... .......... .......... .......... 99% 27.2M 0s
 79750K .......... .......... .......... .......... .......... 99%  111M 0s
 79800K .......... .......... .......... .......... .......... 99%  109M 0s
 79850K .......... .......... .......... .......... .......... 99% 64.9M 0s
 79900K .......... .......... .......... .......... .......... 99% 38.8M 0s
 79950K .......... .......... .......... .......... .......... 99% 65.9M 0s
 80000K .......... .......... .......... .......... .......... 99% 73.7M 0s
 80050K .......... ..                                         100% 26.0M=1.5s
2017-08-14 13:44:13 (50.5 MB/s) - 'boost_1_63_0.tar.bz2' saved [81984414/81984414]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/boost-1.63.0-4.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 numpy python2 python3
Writing git revision for tag auto/ti/boost-1.63.0-4
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.67568
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_63_0
Begin-TLD-Builder-Info
Build-Time: user:4.10s sys:1.19s real:12.63s (faults io:181 non-io:169404)
Files queued for ftp:
  81841770 boost-1.63.0-4.src.rpm
       184 boost-1.63.0-4.src.rpm.uploadinfo
End-TLD-Builder-Info