[...]

fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 tests
Available branches: master
--2015-05-27 07:35:39--  http://distfiles.pld-linux.org/distfiles/by-md5/e/7/e7be00040827e204b2b6cba2f3166074/Devel-GlobalDestruction-0.13.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: 8460 (8.3K) [application/x-gzip]
Saving to: 'Devel-GlobalDestruction-0.13.tar.gz'
     0K ........                                              100% 28.7M=0s
2015-05-27 07:35:39 (28.7 MB/s) - 'Devel-GlobalDestruction-0.13.tar.gz' saved [8460/8460]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/perl-Devel-GlobalDestruction-0.13-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at f225c2b... - updated Sub::Exporter::Progressive version according to Makefile.PL
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-Devel-GlobalDestruction-0.13-1
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.54151
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf Devel-GlobalDestruction-0.13
Begin-PLD-Builder-Info
Build-Time: user:2.60s sys:1.08s real:14.30s (faults io:0 non-io:169828)
Files queued for ftp:
     13553 perl-Devel-GlobalDestruction-0.13-1.src.rpm
       205 perl-Devel-GlobalDestruction-0.13-1.src.rpm.uploadinfo
End-PLD-Builder-Info