[...]

   350K .......... .......... .......... .......... .......... 31%  483M 0s
   400K .......... .......... .......... .......... .......... 34%  292M 0s
   450K .......... .......... .......... .......... .......... 38%  484M 0s
   500K .......... .......... .......... .......... .......... 42%  475M 0s
   550K .......... .......... .......... .......... .......... 46%  483M 0s
   600K .......... .......... .......... .......... .......... 50%  417M 0s
   650K .......... .......... .......... .......... .......... 54%  481M 0s
   700K .......... .......... .......... .......... .......... 58%  480M 0s
   750K .......... .......... .......... .......... .......... 62%  475M 0s
   800K .......... .......... .......... .......... .......... 66%  420M 0s
   850K .......... .......... .......... .......... .......... 69%  365M 0s
   900K .......... .......... .......... .......... .......... 73%  479M 0s
   950K .......... .......... .......... .......... .......... 77%  485M 0s
  1000K .......... .......... .......... .......... .......... 81%  413M 0s
  1050K .......... .......... .......... .......... .......... 85%  487M 0s
  1100K .......... .......... .......... .......... .......... 89%  476M 0s
  1150K .......... .......... .......... .......... .......... 93%  485M 0s
  1200K .......... .......... .......... .......... .......... 97%  422M 0s
  1250K .......... .......... .......... ......               100%  511M=0.003s
2019-01-17 12:12:57 (430 MB/s) - 'otp_doc_man_21.1.tar.gz' saved [1317726/1317726]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/erlang-21.1-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 java
--without:	 odbc
Writing git revision for tag auto/ti/erlang-21.1-2
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.67327
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf otp_src_21.1
Begin-TLD-Builder-Info
Build-Time: user:3.42s sys:0.40s real:6.59s (faults io:2 non-io:119217)
Files queued for ftp:
  86276174 erlang-21.1-2.src.rpm
       183 erlang-21.1-2.src.rpm.uploadinfo
End-TLD-Builder-Info