[...]

   150K .......... .......... .......... .......... .......... 18%  139M 0s
   200K .......... .......... .......... .......... .......... 22% 2.56M 0s
   250K .......... .......... .......... .......... .......... 27% 37.5M 0s
   300K .......... .......... .......... .......... .......... 31% 71.6M 0s
   350K .......... .......... .......... .......... .......... 36%  200M 0s
   400K .......... .......... .......... .......... .......... 40% 2.69M 0s
   450K .......... .......... .......... .......... .......... 45% 68.4M 0s
   500K .......... .......... .......... .......... .......... 49% 81.9M 0s
   550K .......... .......... .......... .......... .......... 54% 42.1M 0s
   600K .......... .......... .......... .......... .......... 58% 73.6M 0s
   650K .......... .......... .......... .......... .......... 63% 60.9M 0s
   700K .......... .......... .......... .......... .......... 67% 91.6M 0s
   750K .......... .......... .......... .......... .......... 72% 3.09M 0s
   800K .......... .......... .......... .......... .......... 76% 60.4M 0s
   850K .......... .......... .......... .......... .......... 81% 32.4M 0s
   900K .......... .......... .......... .......... .......... 85% 87.1M 0s
   950K .......... .......... .......... .......... .......... 90% 98.8M 0s
  1000K .......... .......... .......... .......... .......... 94%  191M 0s
  1050K .......... .......... .......... .......... .......... 99%  168M 0s
  1100K .......                                               100% 13545G=0.1s
2018-03-12 22:53:47 (8.60 MB/s) - 'mpfr-3.1.6.tar.xz' saved [1133672/1133672]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mpfr-3.1.6-1.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/mpfr-3.1.6-1
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.94497
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf mpfr-3.1.6
Begin-TLD-Builder-Info
Build-Time: user:0.94s sys:0.33s real:2.51s (faults io:0 non-io:98197)
Files queued for ftp:
   1140898 mpfr-3.1.6-1.src.rpm
       182 mpfr-3.1.6-1.src.rpm.uploadinfo
End-TLD-Builder-Info