[...]

No conditional flags passed
from available:
--with   :	
--without:	 tests
Available branches: AC-branch RA-branch master
Searching for tag auto/ti/perl-Carp-Assert-0.21-1...
Searching for tag auto/ti/perl-Carp-Assert-0_21-1...
--2017-10-19 15:08:28--  http://distfiles.pld-linux.org/distfiles/by-md5/7/2/72e75c152cc354420719fc9728deec71/Carp-Assert-0.21.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: 11106 (11K) [application/x-gzip]
Saving to: 'Carp-Assert-0.21.tar.gz'
     0K ..........                                            100%  199M=0s
2017-10-19 15:08:28 (199 MB/s) - 'Carp-Assert-0.21.tar.gz' saved [11106/11106]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/perl-Carp-Assert-0.21-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 7b71766... - updated to 0.21
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-Carp-Assert-0.21-1
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.82835
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf Carp-Assert-0.21
Begin-TLD-Builder-Info
Build-Time: user:0.89s sys:0.27s real:3.23s (faults io:0 non-io:88730)
Files queued for ftp:
     16530 perl-Carp-Assert-0.21-1.src.rpm
       193 perl-Carp-Assert-0.21-1.src.rpm.uploadinfo
End-TLD-Builder-Info