[...]

Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 667069 (651K) [application/x-gzip]
Saving to: 'open-iscsi-2.0-873.tar.gz'
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   650K .                                                     100% 5.70M=0.1s
2015-07-30 07:57:28 (5.93 MB/s) - 'open-iscsi-2.0-873.tar.gz' saved [667069/667069]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/open-iscsi-2.0.873-6.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 dynamic
Writing git revision for tag auto/ti/open-iscsi-2.0.873-6
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.98751
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf open-iscsi-2.0-873
Begin-PLD-Builder-Info
Build-Time: user:3.95s sys:2.59s real:6.76s (faults io:0 non-io:451231)
Files queued for ftp:
    919243 open-iscsi-2.0.873-6.src.rpm
       190 open-iscsi-2.0.873-6.src.rpm.uploadinfo
End-PLD-Builder-Info