[...]

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: 613822 (599K) [application/x-bzip2]
Saving to: 'libxcb-1.12.tar.bz2'
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   550K .......... .......... .......... .......... ......... 100%  123M=0.1s
2017-04-13 08:04:17 (5.00 MB/s) - 'libxcb-1.12.tar.bz2' saved [613822/613822]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libxcb-1.12-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 78c7561... - updated to 1.12 - enable xevie, xprint (to keep them) and xinput (new, in sources since 2008)
fatal: HEAD does not point to a branch
Building libxcb.spec with the following conditional flags:
 --without graphviz
from available:
--with   :	
--without:	 apidocs <graphviz>
Writing git revision for tag auto/ti/libxcb-1.12-1
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.26836
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libxcb-1.12
Begin-TLD-Builder-Info
Build-Time: user:0.53s sys:0.11s real:1.83s (faults io:0 non-io:91412)
Files queued for ftp:
    622639 libxcb-1.12-1.src.rpm
       183 libxcb-1.12-1.src.rpm.uploadinfo
End-TLD-Builder-Info