[...]

fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 tests
Available branches: master
--2015-05-27 06:14:19--  http://distfiles.pld-linux.org/distfiles/by-md5/e/c/ecfd0eeb88512033352c2f13c9580f03/HTTP-Cookies-6.01.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: 18751 (18K) [application/x-gzip]
Saving to: 'HTTP-Cookies-6.01.tar.gz'
     0K .......... ........                                   100%  606K=0.03s
2015-05-27 06:14:19 (606 KB/s) - 'HTTP-Cookies-6.01.tar.gz' saved [18751/18751]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/perl-HTTP-Cookies-6.01-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at b72a4d9... - updated to 6.01
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 tests
Writing git revision for tag auto/ti/perl-HTTP-Cookies-6.01-1
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.46005
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf HTTP-Cookies-6.01
Begin-PLD-Builder-Info
Build-Time: user:2.54s sys:0.97s real:9.22s (faults io:0 non-io:154626)
Files queued for ftp:
     24453 perl-HTTP-Cookies-6.01-1.src.rpm
       194 perl-HTTP-Cookies-6.01-1.src.rpm.uploadinfo
End-PLD-Builder-Info