[...]

 28550K .......... .......... .......... .......... .......... 97% 80.6M 0s
 28600K .......... .......... .......... .......... .......... 97% 72.1M 0s
 28650K .......... .......... .......... .......... .......... 97% 1.17M 0s
 28700K .......... .......... .......... .......... .......... 97% 68.0M 0s
 28750K .......... .......... .......... .......... .......... 97% 83.4M 0s
 28800K .......... .......... .......... .......... .......... 97% 68.4M 0s
 28850K .......... .......... .......... .......... .......... 98% 87.8M 0s
 28900K .......... .......... .......... .......... .......... 98% 65.1M 0s
 28950K .......... .......... .......... .......... .......... 98% 85.5M 0s
 29000K .......... .......... .......... .......... .......... 98% 63.9M 0s
 29050K .......... .......... .......... .......... .......... 98% 1.17M 0s
 29100K .......... .......... .......... .......... .......... 98% 68.0M 0s
 29150K .......... .......... .......... .......... .......... 99% 86.3M 0s
 29200K .......... .......... .......... .......... .......... 99% 72.8M 0s
 29250K .......... .......... .......... .......... .......... 99% 79.9M 0s
 29300K .......... .......... .......... .......... .......... 99% 68.7M 0s
 29350K .......... .......... .......... .......... .......... 99% 79.9M 0s
 29400K .......... .......... .......... .......... .......... 99% 2.39M 0s
 29450K .......... .......... ........                        100% 1.29M=4.0s
2019-01-21 11:30:16 (7.21 MB/s) - 'R-3.5.2.tar.gz' saved [30186438/30186438]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/R-3.5.2-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 docs openmp tcl tests
Writing git revision for tag auto/ti/R-3.5.2-1
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.57074
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf R-3.5.2
Begin-TLD-Builder-Info
Build-Time: user:1.63s sys:0.23s real:17.58s (faults io:233 non-io:112678)
Files queued for ftp:
  30200918 R-3.5.2-1.src.rpm
       179 R-3.5.2-1.src.rpm.uploadinfo
End-TLD-Builder-Info