[...]

 28200K .......... .......... .......... .......... .......... 95% 73.9M 0s
 28250K .......... .......... .......... .......... .......... 95%  112M 0s
 28300K .......... .......... .......... .......... .......... 95% 38.6M 0s
 28350K .......... .......... .......... .......... .......... 95%  109M 0s
 28400K .......... .......... .......... .......... .......... 95% 65.1M 0s
 28450K .......... .......... .......... .......... .......... 95% 22.1M 0s
 28500K .......... .......... .......... .......... .......... 96% 17.0M 0s
 28550K .......... .......... .......... .......... .......... 96% 20.3M 0s
 28600K .......... .......... .......... .......... .......... 96% 77.0M 0s
 28650K .......... .......... .......... .......... .......... 96% 9.22M 0s
 28700K .......... .......... .......... .......... .......... 96% 19.8M 0s
 28750K .......... .......... .......... .......... .......... 96% 68.5M 0s
 28800K .......... .......... .......... .......... .......... 97% 43.3M 0s
 28850K .......... .......... .......... .......... .......... 97% 74.4M 0s
 28900K .......... .......... .......... .......... .......... 97% 59.8M 0s
 28950K .......... .......... .......... .......... .......... 97% 41.3M 0s
 29000K .......... .......... .......... .......... .......... 97%  162M 0s
 29050K .......... .......... .......... .......... .......... 98%  134M 0s
 29100K .......... .......... .......... .......... .......... 98% 39.9M 0s
 29150K .......... .......... .......... .......... .......... 98% 15.1M 0s
 29200K .......... .......... .......... .......... .......... 98% 21.1M 0s
 29250K .......... .......... .......... .......... .......... 98% 68.8M 0s
 29300K .......... .......... .......... .......... .......... 98% 9.45M 0s
 29350K .......... .......... .......... .......... .......... 99% 73.8M 0s
 29400K .......... .......... .......... .......... .......... 99% 19.2M 0s
 29450K .......... .......... .......... .......... .......... 99% 56.1M 0s
 29500K .......... .......... .......... .......... .......... 99%  113M 0s
 29550K .......... .......... .......... .......... .......... 99%  122M 0s
 29600K .......... .......... .......... .......... .......... 99% 69.0M 0s
 29650K .......... .......... .......... .......... ...       100%  115M=1.1s
2018-05-02 16:52:20 (27.1 MB/s) - 'mozjs-52.7.4.tar.bz2' saved [30406120/30406120]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mozjs52-52.7.4-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/mozjs52-52.7.4-1
Tag auto/ti/mozjs52-52.7.4-1 already exists
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.34039
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf mozjs-52.7.4
Begin-TLD-Builder-Info
Build-Time: user:2.25s sys:0.67s real:7.20s (faults io:186 non-io:118471)
End-TLD-Builder-Info