[...]

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 21900K .......... .......... .......... .......... .......... 97% 18.7M 0s
 21950K .......... .......... .......... .......... .......... 97% 32.1M 0s
 22000K .......... .......... .......... .......... .......... 97% 70.5M 0s
 22050K .......... .......... .......... .......... .......... 98% 82.6M 0s
 22100K .......... .......... .......... .......... .......... 98% 72.0M 0s
 22150K .......... .......... .......... .......... .......... 98% 35.7M 0s
 22200K .......... .......... .......... .......... .......... 98% 82.5M 0s
 22250K .......... .......... .......... .......... .......... 99% 65.3M 0s
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 22350K .......... .......... .......... .......... .......... 99% 9.36M 0s
 22400K .......... .......... .......... .......... .......... 99% 28.7M 0s
 22450K .......... .......... .......... .......... .......... 99% 63.7M 0s
 22500K ........                                              100% 9.23M=0.6s
2018-09-14 14:30:02 (37.2 MB/s) - 'nss-3.39.tar.gz' saved [23048561/23048561]
--2018-09-14 14:30:03--  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%  510M=0s
2018-09-14 14:30:03 (510 MB/s) - 'root.der' saved [1857/1857]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/nss-3.39-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 8038827 up to 3.39
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/nss-3.39-1
On detached HEAD. Use -r BRANCHNAME to override
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.23781
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf nss-3.39
Begin-TLD-Builder-Info
Build-Time: user:1.32s sys:0.17s real:5.71s (faults io:1 non-io:136398)
Files queued for ftp:
  23051501 nss-3.39-1.src.rpm
       180 nss-3.39-1.src.rpm.uploadinfo
End-TLD-Builder-Info