[...]

No conditional flags passed
from available:
--with   :	
--without:	 prof
Available branches: master
Searching for tag auto/ti/ghc-base64-bytestring-1.0.0.1-1...
Searching for tag auto/ti/ghc-base64-bytestring-1_0_0_1-1...
--2017-10-21 15:14:35--  http://distfiles.pld-linux.org/distfiles/by-md5/b/f/bfe70cca4c75f09f02a8299e19421afc/base64-bytestring-1.0.0.1.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: 9080 (8.9K) [application/x-gzip]
Saving to: 'base64-bytestring-1.0.0.1.tar.gz'
     0K ........                                              100%  164M=0s
2017-10-21 15:14:35 (164 MB/s) - 'base64-bytestring-1.0.0.1.tar.gz' saved [9080/9080]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/ghc-base64-bytestring-1.0.0.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at e6713a6... - new
fatal: HEAD does not point to a branch
No conditional flags passed
from available:
--with   :	
--without:	 prof
Writing git revision for tag auto/ti/ghc-base64-bytestring-1.0.0.1-1
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.65337
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf base64-bytestring-1.0.0.1
Begin-TLD-Builder-Info
Build-Time: user:0.97s sys:0.21s real:2.15s (faults io:0 non-io:82529)
Files queued for ftp:
     14320 ghc-base64-bytestring-1.0.0.1-1.src.rpm
       201 ghc-base64-bytestring-1.0.0.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info