[...]

fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 tests
Available branches: master
--2015-05-27 06:07:23--  http://distfiles.pld-linux.org/distfiles/by-md5/5/2/52b7a0d5982d61be1edb217751d7daba/HTTP-Date-6.02.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: 7319 (7.1K) [application/x-gzip]
Saving to: 'HTTP-Date-6.02.tar.gz'
     0K .......                                               100% 27.8M=0s
2015-05-27 06:07:23 (27.8 MB/s) - 'HTTP-Date-6.02.tar.gz' saved [7319/7319]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/perl-HTTP-Date-6.02-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at d0f390a... - updated to 6.02
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-Date-6.02-1
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.75006
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf HTTP-Date-6.02
Begin-PLD-Builder-Info
Build-Time: user:2.52s sys:0.99s real:9.19s (faults io:0 non-io:154403)
Files queued for ftp:
     11859 perl-HTTP-Date-6.02-1.src.rpm
       191 perl-HTTP-Date-6.02-1.src.rpm.uploadinfo
End-PLD-Builder-Info