[...]

   550K .......... .......... .......... .......... .......... 40%  186M 0s
   600K .......... .......... .......... .......... .......... 43% 69.3M 0s
   650K .......... .......... .......... .......... .......... 47% 67.1M 0s
   700K .......... .......... .......... .......... .......... 50% 83.4M 0s
   750K .......... .......... .......... .......... .......... 54%  227M 0s
   800K .......... .......... .......... .......... .......... 57%  103M 0s
   850K .......... .......... .......... .......... .......... 60% 3.22M 0s
   900K .......... .......... .......... .......... .......... 64%  163M 0s
   950K .......... .......... .......... .......... .......... 67%  193M 0s
  1000K .......... .......... .......... .......... .......... 70% 88.2M 0s
  1050K .......... .......... .......... .......... .......... 74% 67.6M 0s
  1100K .......... .......... .......... .......... .......... 77% 92.3M 0s
  1150K .......... .......... .......... .......... .......... 81% 79.6M 0s
  1200K .......... .......... .......... .......... .......... 84%  209M 0s
  1250K .......... .......... .......... .......... .......... 87% 88.5M 0s
  1300K .......... .......... .......... .......... .......... 91% 81.7M 0s
  1350K .......... .......... .......... .......... .......... 94%  246M 0s
  1400K .......... .......... .......... .......... .......... 97% 89.4M 0s
  1450K .......... .......... ..........                      100%  257M=0.1s
2020-04-05 17:12:15 (12.2 MB/s) - 'libheif-1.6.2.tar.gz' saved [1515763/1515763]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libheif-1.6.2-1.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-1.6.2-1
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.61608
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libheif-1.6.2
Begin-TLD-Builder-Info
Build-Time: user:1.07s sys:0.43s real:2.66s (faults io:0 non-io:96978)
Files queued for ftp:
   1523558 libheif-1.6.2-1.src.rpm
       185 libheif-1.6.2-1.src.rpm.uploadinfo
End-TLD-Builder-Info