[...]

 79100K .......... .......... .......... .......... .......... 98%  424M 0s
 79150K .......... .......... .......... .......... .......... 98% 84.3M 0s
 79200K .......... .......... .......... .......... .......... 98% 76.0M 0s
 79250K .......... .......... .......... .......... .......... 99% 4.99M 0s
 79300K .......... .......... .......... .......... .......... 99% 38.9M 0s
 79350K .......... .......... .......... .......... .......... 99% 60.4M 0s
 79400K .......... .......... .......... .......... .......... 99% 40.2M 0s
 79450K .......... .......... .......... .......... .......... 99%  421M 0s
 79500K .......... .......... .......... .......... .......... 99% 42.0M 0s
 79550K .......... .......... .......... .......... .......... 99% 71.7M 0s
 79600K .......... .......... .......... .......... .......... 99%  436M 0s
 79650K .......... .......... .......... .......... .......... 99% 39.8M 0s
 79700K .......... .......... .......... .......... .......... 99%  313M 0s
 79750K .......... .......... .......... .......... .......... 99% 30.3M 0s
 79800K .......... .......... .......... .......... .......... 99%  434M 0s
 79850K .......... .......... .......... .......... .......... 99% 73.9M 0s
 79900K .......... .......... .......... .......... .......... 99% 74.7M 0s
 79950K .......... .......... .......... .......... .......... 99% 78.4M 0s
 80000K .......... .......... .......... .......... .......... 99% 5.40M 0s
 80050K .......... ..                                         100% 16.7M=2.5s
2018-08-29 08:36:21 (31.6 MB/s) - 'boost_1_63_0.tar.bz2' saved [81984414/81984414]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/boost-1.63.0-6.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-1.63.0-6
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.3376
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_63_0
Begin-TLD-Builder-Info
Build-Time: user:3.36s sys:0.46s real:10.78s (faults io:8 non-io:193193)
Files queued for ftp:
  81841610 boost-1.63.0-6.src.rpm
       184 boost-1.63.0-6.src.rpm.uploadinfo
End-TLD-Builder-Info