[...]

 98950K .......... .......... .......... .......... .......... 99% 79.7M 0s
 99000K .......... .......... .......... .......... .......... 99%  456M 0s
 99050K .......... .......... .......... .......... .......... 99% 74.3M 0s
 99100K .......... .......... .......... .......... .......... 99% 80.6M 0s
 99150K .......... .......... .......... .......... .......... 99% 79.4M 0s
 99200K .......... .......... .......... .......... .......... 99%  334M 0s
 99250K .......... .......... .......... .......... .......... 99% 78.3M 0s
 99300K .......... .......... .......... .......... .......... 99% 82.0M 0s
 99350K .......... .......... .......... .......... ......    100% 89.5M=1.0s
2018-08-21 10:34:35 (96.8 MB/s) - 'linux-4.18.tar.xz' saved [101781564/101781564]
--2018-08-21 10:34:35--  http://df.tld-linux.org/distfiles/by-md5/6/1/615a46a6eee44785ce5595fb9ebc3599/patch-4.18.3.xz
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: 45204 (44K) [application/x-xz]
Saving to: 'patch-4.18.3.xz'
     0K .......... .......... .......... .......... ....      100% 33.4M=0.001s
2018-08-21 10:34:40 (33.4 MB/s) - 'patch-4.18.3.xz' saved [45204/45204]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/linux-libc-headers-4.18.3-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 tests
Writing git revision for tag auto/ti/linux-libc-headers-4.18.3-1
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.19651
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf linux-libc-headers-4.18.3
Begin-TLD-Builder-Info
Build-Time: user:3.81s sys:0.49s real:79.99s (faults io:294 non-io:158152)
Files queued for ftp:
 101878730 linux-libc-headers-4.18.3-1.src.rpm
       197 linux-libc-headers-4.18.3-1.src.rpm.uploadinfo
End-TLD-Builder-Info