[...]

 28800K .......... .......... .......... .......... .......... 97% 95.8M 0s
 28850K .......... .......... .......... .......... .......... 97% 1.17M 0s
 28900K .......... .......... .......... .......... .......... 97%  339M 0s
 28950K .......... .......... .......... .......... .......... 97%  390M 0s
 29000K .......... .......... .......... .......... .......... 97%  369M 0s
 29050K .......... .......... .......... .......... .......... 97%  327M 0s
 29100K .......... .......... .......... .......... .......... 98%  337M 0s
 29150K .......... .......... .......... .......... .......... 98%  276M 0s
 29200K .......... .......... .......... .......... .......... 98%  412M 0s
 29250K .......... .......... .......... .......... .......... 98%  360M 0s
 29300K .......... .......... .......... .......... .......... 98%  406M 0s
 29350K .......... .......... .......... .......... .......... 98%  336M 0s
 29400K .......... .......... .......... .......... .......... 99%  412M 0s
 29450K .......... .......... .......... .......... .......... 99%  315M 0s
 29500K .......... .......... .......... .......... .......... 99%  233M 0s
 29550K .......... .......... .......... .......... .......... 99%  269M 0s
 29600K .......... .......... .......... .......... .......... 99%  285M 0s
 29650K .......... .......... .......... .......... .......... 99%  200M 0s
 29700K .......... .......... .......... .....                100%  275M=1.0s
2019-10-18 22:25:35 (29.7 MB/s) - 'R-3.6.0.tar.gz' saved [30449618/30449618]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/R-3.6.0-3.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-3.6.0-3
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.13972
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf R-3.6.0
Begin-TLD-Builder-Info
Build-Time: user:2.73s sys:0.84s real:6.59s (faults io:0 non-io:106167)
Files queued for ftp:
  30463491 R-3.6.0-3.src.rpm
       179 R-3.6.0-3.src.rpm.uploadinfo
End-TLD-Builder-Info