[...]

  6950K .......... .......... .......... .......... .......... 88%  459M 0s
  7000K .......... .......... .......... .......... .......... 89%  400M 0s
  7050K .......... .......... .......... .......... .......... 90% 34.0M 0s
  7100K .......... .......... .......... .......... .......... 90%  426M 0s
  7150K .......... .......... .......... .......... .......... 91%  461M 0s
  7200K .......... .......... .......... .......... .......... 92%  404M 0s
  7250K .......... .......... .......... .......... .......... 92%  461M 0s
  7300K .......... .......... .......... .......... .......... 93%  459M 0s
  7350K .......... .......... .......... .......... .......... 93%  463M 0s
  7400K .......... .......... .......... .......... .......... 94%  395M 0s
  7450K .......... .......... .......... .......... .......... 95%  399M 0s
  7500K .......... .......... .......... .......... .......... 95%  429M 0s
  7550K .......... .......... .......... .......... .......... 96%  466M 0s
  7600K .......... .......... .......... .......... .......... 97%  402M 0s
  7650K .......... .......... .......... .......... .......... 97%  458M 0s
  7700K .......... .......... .......... .......... .......... 98%  463M 0s
  7750K .......... .......... .......... .......... .......... 99%  464M 0s
  7800K .......... .......... .......... .......... .......... 99%  395M 0s
  7850K .......... .......... ...                             100%  413M=0.02s
2019-12-14 22:48:28 (361 MB/s) - 'swig-4.0.1.tar.gz' saved [8062962/8062962]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/swig-4.0.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Building swig.spec with the following conditional flags:
 --without tests
from available:
--with   :	 php
--without:	 guile perl ruby tcl
Writing git revision for tag auto/ti/swig-4.0.1-1
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.3275
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf swig-4.0.1
Begin-TLD-Builder-Info
Build-Time: user:1.27s sys:0.26s real:11.37s (faults io:240 non-io:91937)
Files queued for ftp:
   8067159 swig-4.0.1-1.src.rpm
       182 swig-4.0.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info