[...]

  2650K .......... .......... .......... .......... .......... 75%  228M 0s
  2700K .......... .......... .......... .......... .......... 76% 86.5M 0s
  2750K .......... .......... .......... .......... .......... 78% 87.0M 0s
  2800K .......... .......... .......... .......... .......... 79% 81.3M 0s
  2850K .......... .......... .......... .......... .......... 81% 1.40M 0s
  2900K .......... .......... .......... .......... .......... 82%  108M 0s
  2950K .......... .......... .......... .......... .......... 83%  204M 0s
  3000K .......... .......... .......... .......... .......... 85%  125M 0s
  3050K .......... .......... .......... .......... .......... 86%  114M 0s
  3100K .......... .......... .......... .......... .......... 88% 74.7M 0s
  3150K .......... .......... .......... .......... .......... 89% 62.0M 0s
  3200K .......... .......... .......... .......... .......... 90% 70.0M 0s
  3250K .......... .......... .......... .......... .......... 92%  213M 0s
  3300K .......... .......... .......... .......... .......... 93% 81.1M 0s
  3350K .......... .......... .......... .......... .......... 95% 95.5M 0s
  3400K .......... .......... .......... .......... .......... 96% 72.9M 0s
  3450K .......... .......... .......... .......... .......... 97% 80.7M 0s
  3500K .......... .......... .......... .......... .......... 99%  196M 0s
  3550K .......... .......... ..                              100% 52.4M=0.4s
2019-08-13 18:55:30 (9.25 MB/s) - 'exempi-2.5.0.tar.bz2' saved [3658187/3658187]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/exempi-2.5.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 tests
Writing git revision for tag auto/ti/exempi-2.5.0-1
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.86872
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf exempi-2.5.0
Begin-TLD-Builder-Info
Build-Time: user:0.86s sys:0.17s real:3.01s (faults io:0 non-io:92368)
Files queued for ftp:
   3663176 exempi-2.5.0-1.src.rpm
       184 exempi-2.5.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info