[...]

 16550K .......... .......... .......... .......... .......... 94% 3.88M 0s
 16600K .......... .......... .......... .......... .......... 95%  133M 0s
 16650K .......... .......... .......... .......... .......... 95% 85.3M 0s
 16700K .......... .......... .......... .......... .......... 95% 75.6M 0s
 16750K .......... .......... .......... .......... .......... 96% 1.58M 0s
 16800K .......... .......... .......... .......... .......... 96% 84.3M 0s
 16850K .......... .......... .......... .......... .......... 96% 75.1M 0s
 16900K .......... .......... .......... .......... .......... 96% 2.71M 0s
 16950K .......... .......... .......... .......... .......... 97%  290M 0s
 17000K .......... .......... .......... .......... .......... 97%  269M 0s
 17050K .......... .......... .......... .......... .......... 97% 1.83M 0s
 17100K .......... .......... .......... .......... .......... 98%  215M 0s
 17150K .......... .......... .......... .......... .......... 98% 77.1M 0s
 17200K .......... .......... .......... .......... .......... 98% 86.9M 0s
 17250K .......... .......... .......... .......... .......... 98% 2.70M 0s
 17300K .......... .......... .......... .......... .......... 99%  112M 0s
 17350K .......... .......... .......... .......... .......... 99% 62.5M 0s
 17400K .......... .......... .......... .......... .......... 99% 1.92M 0s
 17450K .......... .......... .......... .........            100% 67.6M=2.2s
2019-01-16 14:19:26 (7.66 MB/s) - 'harfbuzz-2.3.0.tar.bz2' saved [17909479/17909479]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/harfbuzz-2.3.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 graphite2 icu static_libs tests
Writing git revision for tag auto/ti/harfbuzz-2.3.0-1
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.80535
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf harfbuzz-2.3.0
Begin-TLD-Builder-Info
Build-Time: user:1.72s sys:0.43s real:10.78s (faults io:87 non-io:101156)
Files queued for ftp:
  17859961 harfbuzz-2.3.0-1.src.rpm
       186 harfbuzz-2.3.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info