[...]

 28400K .......... .......... .......... .......... .......... 95% 82.9M 0s
 28450K .......... .......... .......... .......... .......... 95% 72.3M 0s
 28500K .......... .......... .......... .......... .......... 96% 86.2M 0s
 28550K .......... .......... .......... .......... .......... 96% 19.1M 0s
 28600K .......... .......... .......... .......... .......... 96% 4.05M 0s
 28650K .......... .......... .......... .......... .......... 96% 2.65M 0s
 28700K .......... .......... .......... .......... .......... 96% 14.6M 0s
 28750K .......... .......... .......... .......... .......... 96% 62.1M 0s
 28800K .......... .......... .......... .......... .......... 97% 73.1M 0s
 28850K .......... .......... .......... .......... .......... 97%  349M 0s
 28900K .......... .......... .......... .......... .......... 97% 85.1M 0s
 28950K .......... .......... .......... .......... .......... 97% 73.9M 0s
 29000K .......... .......... .......... .......... .......... 97% 76.8M 0s
 29050K .......... .......... .......... .......... .......... 98%  414M 0s
 29100K .......... .......... .......... .......... .......... 98% 16.5M 0s
 29150K .......... .......... .......... .......... .......... 98% 5.14M 0s
 29200K .......... .......... .......... .......... .......... 98% 2.33M 0s
 29250K .......... .......... .......... .......... .......... 98% 17.6M 0s
 29300K .......... .......... .......... .......... .......... 98% 70.7M 0s
 29350K .......... .......... .......... .......... .......... 99% 77.0M 0s
 29400K .......... .......... .......... .......... .......... 99% 74.5M 0s
 29450K .......... .......... .......... .......... .......... 99% 77.8M 0s
 29500K .......... .......... .......... .......... .......... 99% 81.6M 0s
 29550K .......... .......... .......... .......... .......... 99% 70.4M 0s
 29600K .......... .......... .......... .......... .......... 99%  345M 0s
 29650K .......... .......... .......... .......... ...       100% 78.5M=2.0s
2019-08-18 16:26:39 (14.3 MB/s) - 'mozjs-52.7.4.tar.bz2' saved [30406120/30406120]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mozjs52-52.7.4-4.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/mozjs52-52.7.4-4
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.16632
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf mozjs-52.7.4
Begin-TLD-Builder-Info
Build-Time: user:1.66s sys:0.25s real:5.78s (faults io:0 non-io:127017)
Files queued for ftp:
  29814677 mozjs52-52.7.4-4.src.rpm
       186 mozjs52-52.7.4-4.src.rpm.uploadinfo
End-TLD-Builder-Info