[...]

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
  git checkout -b new_branch_name
HEAD is now at 223bc23... - updated to 0.9.10 (bounds checking fixes)
fatal: HEAD does not point to a branch
Available branches: master
Searching for tag auto/ti/xorg-lib-libXrender-0.9.10-1...
Searching for tag auto/ti/xorg-lib-libXrender-0_9_10-1...
--2017-04-13 07:26:07--  http://distfiles.pld-linux.org/distfiles/by-md5/8/0/802179a76bded0b658f4e9ec5e1830a4/libXrender-0.9.10.tar.bz2
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: 308318 (301K) [application/x-bzip2]
Saving to: 'libXrender-0.9.10.tar.bz2'
     0K .......... .......... .......... .......... .......... 16% 1.05M 0s
    50K .......... .......... .......... .......... .......... 33% 2.10M 0s
   100K .......... .......... .......... .......... .......... 49% 81.1M 0s
   150K .......... .......... .......... .......... .......... 66%  111M 0s
   200K .......... .......... .......... .......... .......... 83% 2.14M 0s
   250K .......... .......... .......... .......... .......... 99%  254M 0s
   300K .                                                     100% 2082G=0.09s
2017-04-13 07:26:07 (3.14 MB/s) - 'libXrender-0.9.10.tar.bz2' saved [308318/308318]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-lib-libXrender-0.9.10-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 223bc23... - updated to 0.9.10 (bounds checking fixes)
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/xorg-lib-libXrender-0.9.10-1
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.24126
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libXrender-0.9.10
Begin-TLD-Builder-Info
Build-Time: user:0.62s sys:0.21s real:1.96s (faults io:0 non-io:90148)
Files queued for ftp:
    313724 xorg-lib-libXrender-0.9.10-1.src.rpm
       198 xorg-lib-libXrender-0.9.10-1.src.rpm.uploadinfo
End-TLD-Builder-Info