[...]

 21700K .......... .......... .......... .......... .......... 96% 71.9M 0s
 21750K .......... .......... .......... .......... .......... 96% 73.2M 0s
 21800K .......... .......... .......... .......... .......... 97% 37.2M 0s
 21850K .......... .......... .......... .......... .......... 97% 38.1M 0s
 21900K .......... .......... .......... .......... .......... 97% 9.86M 0s
 21950K .......... .......... .......... .......... .......... 97% 14.6M 0s
 22000K .......... .......... .......... .......... .......... 98% 72.5M 0s
 22050K .......... .......... .......... .......... .......... 98% 19.1M 0s
 22100K .......... .......... .......... .......... .......... 98% 50.4M 0s
 22150K .......... .......... .......... .......... .......... 98% 16.7M 0s
 22200K .......... .......... .......... .......... .......... 98% 52.9M 0s
 22250K .......... .......... .......... .......... .......... 99%  108M 0s
 22300K .......... .......... .......... .......... .......... 99% 29.3M 0s
 22350K .......... .......... .......... .......... .......... 99% 78.9M 0s
 22400K .......... .......... .......... .......... .......... 99% 49.4M 0s
 22450K .......... .......... .......... .......              100% 7.19M=0.8s
2018-05-09 12:17:35 (27.7 MB/s) - 'nss-3.37.tar.gz' saved [23027581/23027581]
--2018-05-09 12:17:35--  http://distfiles.pld-linux.org/distfiles/by-md5/a/6/a61b375e390d9c3654eebd2031461f6b/root.der
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1857 (1.8K) [application/x-x509-ca-cert]
Saving to: 'root.der'
     0K .                                                     100%  320M=0s
2018-05-09 12:17:35 (320 MB/s) - 'root.der' saved [1857/1857]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/nss-3.37-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/nss-3.37-1
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.40071
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf nss-3.37
Begin-TLD-Builder-Info
Build-Time: user:1.70s sys:0.48s real:5.71s (faults io:28 non-io:127936)
Files queued for ftp:
  23030739 nss-3.37-1.src.rpm
       180 nss-3.37-1.src.rpm.uploadinfo
End-TLD-Builder-Info