[...]

 82350K .......... .......... .......... .......... .......... 99% 14.1M 0s
 82400K .......... .......... .......... .......... .......... 99% 13.9M 0s
 82450K .......... .......... .......... .......... .......... 99%  161M 0s
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 82850K .......... .......... .......... .......... .......... 99% 42.6M 0s
 82900K .......... .......... .......... .......... .......... 99%  273M 0s
 82950K .......... .......... .......... .......... .......... 99% 90.2M 0s
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 83050K .......... .......... .......... .......... .......... 99%  290M 0s
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 83150K .......... .......... .......... .......... .......... 99%  106M 0s
 83200K .....                                                 100%  173M=2.0s
2017-04-06 08:07:41 (40.6 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/
HEAD is now at c358470... - rebuild with icu 58.2 - release 6 (by relup.sh)
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 python2 python3
Writing git revision for tag auto/ti/boost-1.61.0-6
On detached HEAD. Use -r BRANCHNAME to override
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.61759
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf boost_1_61_0
Begin-TLD-Builder-Info
Build-Time: user:3.87s sys:1.20s real:10.03s (faults io:2 non-io:139848)
Files queued for ftp:
  85078327 boost-1.61.0-6.src.rpm
       184 boost-1.61.0-6.src.rpm.uploadinfo
End-TLD-Builder-Info