[...]

 96850K .......... .......... .......... .......... .......... 99% 1.10M 0s
 96900K .......... .......... .......... .......... .......... 99%  193M 0s
 96950K .......... .......... .......... .......... .......... 99% 1012K 0s
 97000K .......... .......... .......... .......... .......... 99% 2.82M 0s
 97050K .......... .......... .......... .......... .......... 99% 1.43M 0s
 97100K .......... .......... .......... .......... .......... 99% 1.14M 0s
 97150K .......... .......... .......... .......... .......... 99%  216M 0s
 97200K .......... .......... .......... .......... .......... 99% 1.11M 0s
 97250K .......... .......... .......... .......... .......... 99% 1.18M 0s
 97300K .......... .......... .......... .......... .......... 99%  164M 0s
 97350K .......... .......... .......... .......... .......... 99%  976K 0s
 97400K .......... .......... .......... .......... .......... 99%  138M 0s
 97450K .......... .......... .......... .......... .......... 99% 1.15M 0s
 97500K .......... .......... .......... .......... .......... 99%  233M 0s
 97550K .......... .......... .......... .......... .......... 99% 1018K 0s
 97600K .......... .......... .......... .......... .......... 99% 1.16M 0s
 97650K .......... .......... .......... .......... .......... 99%  203M 0s
 97700K .......... .......... .......... .......... .......... 99% 1.09M 0s
 97750K .......... .......... .......                         100%  195M=39s
2019-08-25 15:41:33 (2.48 MB/s) - 'boost_1_71_0.tar.bz2' saved [100124647/100124647]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/boost-1.71.0-1.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-1.71.0-1
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.13503
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_71_0
Begin-TLD-Builder-Info
Build-Time: user:6.91s sys:2.93s real:58.37s (faults io:19 non-io:156597)
Files queued for ftp:
  99949949 boost-1.71.0-1.src.rpm
       184 boost-1.71.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info