[...]

Saving to: 'shorewall6-lite-5.2.1.tar.bz2'
     0K .......... .......... .......... ......               100% 1.18M=0.03s
2018-10-11 21:49:47 (1.18 MB/s) - 'shorewall6-lite-5.2.1.tar.bz2' saved [37244/37244]
--2018-10-11 21:49:47--  http://df.tld-linux.org/distfiles/by-md5/6/f/6f0365f0d1401221d319844f027b49b5/shorewall-init-5.2.1.tar.bz2
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: 31705 (31K) [application/x-bzip2]
Saving to: 'shorewall-init-5.2.1.tar.bz2'
     0K .......... .......... ..........                      100% 1.03M=0.03s
2018-10-11 21:49:47 (1.03 MB/s) - 'shorewall-init-5.2.1.tar.bz2' saved [31705/31705]
--2018-10-11 21:49:47--  http://df.tld-linux.org/distfiles/by-md5/c/a/ca867aed49a68c58be90add6be937fb2/shorewall-core-5.2.1.tar.bz2
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: 76562 (75K) [application/x-bzip2]
Saving to: 'shorewall-core-5.2.1.tar.bz2'
     0K .......... .......... .......... .......... .......... 66%  955K 0s
    50K .......... .......... ....                            100% 4.14M=0.06s
2018-10-11 21:49:48 (1.25 MB/s) - 'shorewall-core-5.2.1.tar.bz2' saved [76562/76562]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/shorewall-5.2.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/shorewall-5.2.1-1
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.96322
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf shorewall-5.2.1
Begin-TLD-Builder-Info
Build-Time: user:0.61s sys:0.10s real:2.58s (faults io:20 non-io:232998)
Files queued for ftp:
    936518 shorewall-5.2.1-1.src.rpm
       187 shorewall-5.2.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info