[...]

 16600K .......... .......... .......... .......... .......... 95% 3.70M 0s
 16650K .......... .......... .......... .......... .......... 95% 85.4M 0s
 16700K .......... .......... .......... .......... .......... 95% 58.4M 0s
 16750K .......... .......... .......... .......... .......... 95% 60.6M 0s
 16800K .......... .......... .......... .......... .......... 96% 63.6M 0s
 16850K .......... .......... .......... .......... .......... 96% 1.96M 0s
 16900K .......... .......... .......... .......... .......... 96% 3.64M 0s
 16950K .......... .......... .......... .......... .......... 97% 89.4M 0s
 17000K .......... .......... .......... .......... .......... 97%  137M 0s
 17050K .......... .......... .......... .......... .......... 97% 74.8M 0s
 17100K .......... .......... .......... .......... .......... 97% 59.1M 0s
 17150K .......... .......... .......... .......... .......... 98% 75.9M 0s
 17200K .......... .......... .......... .......... .......... 98% 1.96M 0s
 17250K .......... .......... .......... .......... .......... 98% 3.63M 0s
 17300K .......... .......... .......... .......... .......... 99% 82.5M 0s
 17350K .......... .......... .......... .......... .......... 99%  149M 0s
 17400K .......... .......... .......... .......... .......... 99% 62.8M 0s
 17450K .......... .......... .......... .......... .......... 99% 30.8M 0s
 17500K .......... .......... ..                              100%  222M=2.4s
2019-02-25 12:47:07 (7.20 MB/s) - 'harfbuzz-2.3.1.tar.bz2' saved [17942960/17942960]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/harfbuzz-2.3.1-1.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-2.3.1-1
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.42243
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf harfbuzz-2.3.1
Begin-TLD-Builder-Info
Build-Time: user:1.98s sys:0.38s real:9.11s (faults io:3 non-io:101140)
Files queued for ftp:
  17893435 harfbuzz-2.3.1-1.src.rpm
       186 harfbuzz-2.3.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info