[...]

No conditional flags passed
from available:
--with   :	 tests
--without:	 doc python2 python3
Available branches: master
Searching for tag auto/ti/python-rst.linker-1.6-1...
Searching for tag auto/ti/python-rst_linker-1_6-1...
--2016-08-19 14:08:07--  http://distfiles.pld-linux.org/distfiles/by-md5/1/d/1d80b37c613e4666abcbe23e55f92875/rst.linker-1.6.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: 6439 (6.3K) [application/x-gzip]
Saving to: 'rst.linker-1.6.tar.gz'
     0K ......                                                100%  205M=0s
2016-08-19 14:08:07 (205 MB/s) - 'rst.linker-1.6.tar.gz' saved [6439/6439]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/python-rst.linker-1.6-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at acafab9... - updated to 1.6
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	 tests
--without:	 doc python2 python3
Writing git revision for tag auto/ti/python-rst.linker-1.6-1
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.41784
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf rst.linker-1.6
Begin-TLD-Builder-Info
Build-Time: user:3.01s sys:1.20s real:4.76s (faults io:0 non-io:81401)
Files queued for ftp:
     12278 python-rst.linker-1.6-1.src.rpm
       193 python-rst.linker-1.6-1.src.rpm.uploadinfo
End-TLD-Builder-Info