[...]

  git checkout -b new_branch_name
HEAD is now at a6821c7... - up to 0.98b
error: HEAD does not point to a branch
fatal: @{u} - not something we can merge
No conditional flags passed
from available:
--with   :	 sse2
--without:	
Available branches: master
--2014-09-16 08:49:44--  http://distfiles.pld-linux.org/distfiles/by-md5/d/b/dbce3c292656de126f02b6a616e8d5e6/vid.stab-0.98b.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: 73590 (72K) [application/x-gzip]
Saving to: 'vid.stab-0.98b.tar.gz'
     0K .......... .......... .......... .......... .......... 69%  810K 0s
    50K .......... .......... .                               100%  750K=0.09s
2014-09-16 08:49:44 (791 KB/s) - 'vid.stab-0.98b.tar.gz' saved [73590/73590]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/vid.stab-0.98b-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Version: 0.98b
Release: 1
tag: auto/ti/vid.stab-0.98b-1
Searching for tag auto/ti/vid.stab-0.98b-1...
Everything up-to-date
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 PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin HOME=/home/users/builder TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.90879
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf georgmartius-vid.stab-3b35b4d
Begin-PLD-Builder-Info
Build-Time: user:3.30s sys:1.13s real:6.73s (faults io:3 non-io:145357)
Files queued for ftp:
     77998 vid.stab-0.98b-1.src.rpm
       186 vid.stab-0.98b-1.src.rpm.uploadinfo
End-PLD-Builder-Info