[...]

No conditional flags passed
from available:
--with   :	 bootstrap
--without:	
Available branches: AC-branch master
Searching for tag auto/ti/alex-3.1.3-2...
Searching for tag auto/ti/alex-3_1_3-2...
--2017-10-21 12:59:23--  http://distfiles.pld-linux.org/distfiles/by-md5/5/2/525e570cb0e84fd856f9c53605ec9e98/alex-3.1.3.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: 99868 (98K) [application/x-gzip]
Saving to: 'alex-3.1.3.tar.gz'
     0K .......... .......... .......... .......... .......... 51% 1.09M 0s
    50K .......... .......... .......... .......... .......   100% 41.3M=0.05s
2017-10-21 12:59:23 (2.08 MB/s) - 'alex-3.1.3.tar.gz' saved [99868/99868]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/alex-3.1.3-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 337a67f... - release 2 (by relup.sh)
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	
Writing git revision for tag auto/ti/alex-3.1.3-2
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.46617
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf alex-3.1.3
Begin-TLD-Builder-Info
Build-Time: user:1.00s sys:0.27s real:2.71s (faults io:0 non-io:89419)
Files queued for ftp:
    104199 alex-3.1.3-2.src.rpm
       182 alex-3.1.3-2.src.rpm.uploadinfo
End-TLD-Builder-Info