[...]

 18500K .......... .......... .......... .......... .......... 98%  259M 0s
 18550K .......... .......... .......... .......... .......... 98% 75.9M 0s
 18600K .......... .......... .......... .......... .......... 99% 93.0M 0s
 18650K .......... .......... .......... .......... .......... 99% 76.9M 0s
 18700K .......... .......... .......... .......... .......... 99%  263M 0s
 18750K .......... .......... .......... .......... .......... 99% 88.0M 0s
 18800K .........                                             100%  146M=0.2s
2017-02-09 09:15:37 (96.8 MB/s) - 'postgresql-9.6.1.tar.bz2' saved [19260568/19260568]
--2017-02-09 09:15:37--  http://df.tld-linux.org/distfiles/by-md5/5/b/5b656ddf1db41965761f85204a14398e/pgsql-Database-HOWTO-html.tar.gz
Resolving df.tld-linux.org (df.tld-linux.org)... 46.4.78.55
Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 45992 (45K) [application/x-gzip]
Saving to: 'pgsql-Database-HOWTO-html.tar.gz'
     0K .......... .......... .......... .......... ....      100% 30.8M=0.001s
2017-02-09 09:15:40 (30.8 MB/s) - 'pgsql-Database-HOWTO-html.tar.gz' saved [45992/45992]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/postgresql-9.6.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 86b50b0... - updated to 9.6.1
fatal: HEAD does not point to a branch
Building postgresql.spec with the following conditional flags:
 --without tests
from available:
--with   :	 absolute_dbpaths bonjour systemtap
--without:	 kerberos5 ldap perl python selinux tcl <tests>
Writing git revision for tag auto/ti/postgresql-9.6.1-1
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.2684
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf postgresql-9.6.1
Begin-TLD-Builder-Info
Build-Time: user:1.72s sys:0.56s real:43.32s (faults io:0 non-io:190173)
Files queued for ftp:
  19190449 postgresql-9.6.1-1.src.rpm
       188 postgresql-9.6.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info