[...]

   400K .......... .......... .......... .......... .......... 33% 1.29M 0s
   450K .......... .......... .......... .......... .......... 37%  226M 0s
   500K .......... .......... .......... .......... .......... 41%  101M 0s
   550K .......... .......... .......... .......... .......... 44%  103M 0s
   600K .......... .......... .......... .......... .......... 48%  226M 0s
   650K .......... .......... .......... .......... .......... 52% 88.6M 0s
   700K .......... .......... .......... .......... .......... 56% 82.7M 0s
   750K .......... .......... .......... .......... .......... 59%  206M 0s
   800K .......... .......... .......... .......... .......... 63% 90.0M 0s
   850K .......... .......... .......... .......... .......... 67% 1.33M 0s
   900K .......... .......... .......... .......... .......... 71%  280M 0s
   950K .......... .......... .......... .......... .......... 74%  137M 0s
  1000K .......... .......... .......... .......... .......... 78% 96.4M 0s
  1050K .......... .......... .......... .......... .......... 82%  168M 0s
  1100K .......... .......... .......... .......... .......... 86%  121M 0s
  1150K .......... .......... .......... .......... .......... 89%  118M 0s
  1200K .......... .......... .......... .......... .......... 93% 81.2M 0s
  1250K .......... .......... .......... .......... .......... 97%  211M 0s
  1300K .......... .......... .......... ....                 100% 81.5M=0.2s
2019-08-13 18:34:40 (5.35 MB/s) - 'libheif-1.4.0.tar.gz' saved [1366030/1366030]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libheif-1.4.0-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 tests
Writing git revision for tag auto/ti/libheif-1.4.0-2
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.84055
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libheif-1.4.0
Begin-TLD-Builder-Info
Build-Time: user:0.92s sys:0.24s real:2.90s (faults io:0 non-io:100806)
Files queued for ftp:
   1373172 libheif-1.4.0-2.src.rpm
       185 libheif-1.4.0-2.src.rpm.uploadinfo
End-TLD-Builder-Info