[...]

--2018-05-19 00:11:38--  http://df.tld-linux.org/distfiles/by-md5/1/f/1f12a70d767ef77ffa2d1a0c4ce48f1a/iproute2-4.16.0.tar.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: 661336 (646K) [application/x-xz]
Saving to: 'iproute2-4.16.0.tar.xz'
     0K .......... .......... .......... .......... ..........  7% 21.4M 0s
    50K .......... .......... .......... .......... .......... 15% 76.3M 0s
   100K .......... .......... .......... .......... .......... 23% 28.9M 0s
   150K .......... .......... .......... .......... .......... 30% 27.5M 0s
   200K .......... .......... .......... .......... .......... 38% 63.5M 0s
   250K .......... .......... .......... .......... .......... 46%  167M 0s
   300K .......... .......... .......... .......... .......... 54%  110M 0s
   350K .......... .......... .......... .......... .......... 61% 88.0M 0s
   400K .......... .......... .......... .......... .......... 69% 95.0M 0s
   450K .......... .......... .......... .......... .......... 77%  174M 0s
   500K .......... .......... .......... .......... .......... 85%  178M 0s
   550K .......... .......... .......... .......... .......... 92%  147M 0s
   600K .......... .......... .......... .......... .....     100%  223M=0.01s
2018-05-19 00:11:38 (62.7 MB/s) - 'iproute2-4.16.0.tar.xz' saved [661336/661336]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/iproute2-4.16.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 iface_descr uClibc
--without:	 atm tc
Writing git revision for tag auto/ti/iproute2-4.16.0-1
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.49892
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf iproute2-4.16.0
Begin-TLD-Builder-Info
Build-Time: user:0.79s sys:0.21s real:2.29s (faults io:1 non-io:159756)
Files queued for ftp:
    681226 iproute2-4.16.0-1.src.rpm
       187 iproute2-4.16.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info