[...]

 --without tests
from available:
--with   :	 tests
--without:	 doc python2 python3
Available branches: master
Searching for tag auto/ti/python-mock-2.0.0-4...
Searching for tag auto/ti/python-mock-2_0_0-4...
--2019-12-07 12:32:33--  http://distfiles.pld-linux.org/by-md5/0/f/0febfafd14330c9dcaa40de2d82d40ad/mock-2.0.0.tar.gz
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: 73684 (72K) [application/x-gzip]
Saving to: 'mock-2.0.0.tar.gz'
     0K .......... .......... .......... .......... .......... 69%  577K 0s
    50K .......... .......... .                               100% 37.4M=0.09s
2019-12-07 12:32:33 (825 KB/s) - 'mock-2.0.0.tar.gz' saved [73684/73684]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/python-mock-2.0.0-4.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 5515b7a - pbr is required for setup
fatal: HEAD does not point to a branch
Building python-mock.spec with the following conditional flags:
 --without tests
from available:
--with   :	 tests
--without:	 doc python2 python3
Writing git revision for tag auto/ti/python-mock-2.0.0-4
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.9459
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf mock-2.0.0
Begin-TLD-Builder-Info
Build-Time: user:1.07s sys:0.32s real:3.08s (faults io:0 non-io:99848)
Files queued for ftp:
     81327 python-mock-2.0.0-4.src.rpm
       189 python-mock-2.0.0-4.src.rpm.uploadinfo
End-TLD-Builder-Info