[...]

  6850K .......... .......... .......... .......... .......... 87% 9.88M 0s
  6900K .......... .......... .......... .......... .......... 88% 28.8M 0s
  6950K .......... .......... .......... .......... .......... 89% 9.80M 0s
  7000K .......... .......... .......... .......... .......... 89% 9.00M 0s
  7050K .......... .......... .......... .......... .......... 90% 9.58M 0s
  7100K .......... .......... .......... .......... .......... 91% 17.4M 0s
  7150K .......... .......... .......... .......... .......... 91% 24.4M 0s
  7200K .......... .......... .......... .......... .......... 92% 8.28M 0s
  7250K .......... .......... .......... .......... .......... 93% 25.3M 0s
  7300K .......... .......... .......... .......... .......... 93% 26.0M 0s
  7350K .......... .......... .......... .......... .......... 94% 25.8M 0s
  7400K .......... .......... .......... .......... .......... 95% 35.8M 0s
  7450K .......... .......... .......... .......... .......... 95% 4.58M 0s
  7500K .......... .......... .......... .......... .......... 96% 29.4M 0s
  7550K .......... .......... .......... .......... .......... 96% 26.0M 0s
  7600K .......... .......... .......... .......... .......... 97% 10.2M 0s
  7650K .......... .......... .......... .......... .......... 98% 28.3M 0s
  7700K .......... .......... .......... .......... .......... 98% 28.3M 0s
  7750K .......... .......... .......... .......... .......... 99% 29.2M 0s
  7800K .......... .......... .......... .......... .         100% 3.00M=0.7s
2016-08-20 15:07:01 (10.5 MB/s) - 'swig-3.0.10.tar.gz' saved [8029827/8029827]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/swig-3.0.10-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 octave
--without:	 guile ocaml perl php ruby tcl
Writing git revision for tag auto/ti/swig-3.0.10-1
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.83402
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf swig-3.0.10
Begin-TLD-Builder-Info
Build-Time: user:5.21s sys:1.58s real:10.22s (faults io:173 non-io:93162)
Files queued for ftp:
   8031443 swig-3.0.10-1.src.rpm
       183 swig-3.0.10-1.src.rpm.uploadinfo
End-TLD-Builder-Info