[...]

 38200K .......... .......... .......... .......... .......... 97% 28.1M 0s
 38250K .......... .......... .......... .......... .......... 97% 37.7M 0s
 38300K .......... .......... .......... .......... .......... 97% 70.1M 0s
 38350K .......... .......... .......... .......... .......... 97% 76.3M 0s
 38400K .......... .......... .......... .......... .......... 98% 38.3M 0s
 38450K .......... .......... .......... .......... .......... 98% 50.4M 0s
 38500K .......... .......... .......... .......... .......... 98% 78.3M 0s
 38550K .......... .......... .......... .......... .......... 98% 38.3M 0s
 38600K .......... .......... .......... .......... .......... 98% 68.7M 0s
 38650K .......... .......... .......... .......... .......... 98% 76.4M 0s
 38700K .......... .......... .......... .......... .......... 98% 70.9M 0s
 38750K .......... .......... .......... .......... .......... 98% 53.3M 0s
 38800K .......... .......... .......... .......... .......... 99% 7.40M 0s
 38850K .......... .......... .......... .......... .......... 99% 58.1M 0s
 38900K .......... .......... .......... .......... .......... 99% 73.5M 0s
 38950K .......... .......... .......... .......... .......... 99% 20.9M 0s
 39000K .......... .......... .......... .......... .......... 99%  399M 0s
 39050K .......... .......... .......... .......... .......... 99%  465M 0s
 39100K .......... .......... .......... .......... .......... 99% 87.6M 0s
 39150K .......... .......... .......... .......... ...       100% 74.2M=0.9s
2018-08-31 12:34:08 (40.4 MB/s) - 'ntop-5.0.1.tar.gz' saved [40133867/40133867]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/ntop-5.0.1-3.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 mysql
--without:	
Writing git revision for tag auto/ti/ntop-5.0.1-3
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.87469
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf ntop-5.0.1
Begin-TLD-Builder-Info
Build-Time: user:2.03s sys:0.26s real:5.71s (faults io:1 non-io:228391)
Files queued for ftp:
  40176726 ntop-5.0.1-3.src.rpm
       182 ntop-5.0.1-3.src.rpm.uploadinfo
End-TLD-Builder-Info