[...]

  2550K .......... .......... .......... .......... .......... 74%  129M 0s
  2600K .......... .......... .......... .......... .......... 76%  138M 0s
  2650K .......... .......... .......... .......... .......... 77% 3.25M 0s
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  3250K .......... .......... .......... .......... .......... 95% 25.4M 0s
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  3450K .......... .........                                  100% 19.3M=0.3s
2020-04-05 17:17:17 (10.9 MB/s) - 'libxslt-1.1.34.tar.gz' saved [3552258/3552258]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libxslt-1.1.34-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 tests
--without:	 python static_libs
Writing git revision for tag auto/ti/libxslt-1.1.34-1
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.17316
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libxslt-1.1.34
Begin-TLD-Builder-Info
Build-Time: user:1.88s sys:0.91s real:4.27s (faults io:0 non-io:121341)
Files queued for ftp:
   3534100 libxslt-1.1.34-1.src.rpm
       186 libxslt-1.1.34-1.src.rpm.uploadinfo
End-TLD-Builder-Info