[...]

  7000K .......... .......... .......... .......... .......... 88% 67.0M 0s
  7050K .......... .......... .......... .......... .......... 89% 87.9M 0s
  7100K .......... .......... .......... .......... .......... 89% 78.1M 0s
  7150K .......... .......... .......... .......... .......... 90%  430M 0s
  7200K .......... .......... .......... .......... .......... 91% 84.8M 0s
  7250K .......... .......... .......... .......... .......... 91% 68.6M 0s
  7300K .......... .......... .......... .......... .......... 92% 90.7M 0s
  7350K .......... .......... .......... .......... .......... 92%  374M 0s
  7400K .......... .......... .......... .......... .......... 93% 78.2M 0s
  7450K .......... .......... .......... .......... .......... 94% 84.0M 0s
  7500K .......... .......... .......... .......... .......... 94% 72.4M 0s
  7550K .......... .......... .......... .......... .......... 95%  402M 0s
  7600K .......... .......... .......... .......... .......... 96% 83.1M 0s
  7650K .......... .......... .......... .......... .......... 96% 72.6M 0s
  7700K .......... .......... .......... .......... .......... 97% 87.3M 0s
  7750K .......... .......... .......... .......... .......... 98%  439M 0s
  7800K .......... .......... .......... .......... .......... 98% 73.1M 0s
  7850K .......... .......... .......... .......... .......... 99% 90.0M 0s
  7900K .......... .......... .......... .......... .......... 99% 74.3M 0s
  7950K ........                                              100%  179M=0.08s
2018-09-03 20:08:43 (97.0 MB/s) - 'swig-3.0.12.tar.gz' saved [8149820/8149820]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/swig-3.0.12-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 guile perl php ruby tcl
Writing git revision for tag auto/ti/swig-3.0.12-1
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.62467
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf swig-3.0.12
Begin-TLD-Builder-Info
Build-Time: user:0.97s sys:0.10s real:3.23s (faults io:135 non-io:100531)
Files queued for ftp:
   8150074 swig-3.0.12-1.src.rpm
       183 swig-3.0.12-1.src.rpm.uploadinfo
End-TLD-Builder-Info