[...]

 67600K .......... .......... .......... .......... .......... 98% 92.9M 0s
 67650K .......... .......... .......... .......... .......... 98% 56.3M 0s
 67700K .......... .......... .......... .......... .......... 98%  114M 0s
 67750K .......... .......... .......... .......... .......... 98%  190M 0s
 67800K .......... .......... .......... .......... .......... 98% 64.8M 0s
 67850K .......... .......... .......... .......... .......... 98% 94.2M 0s
 67900K .......... .......... .......... .......... .......... 98%  106M 0s
 67950K .......... .......... .......... .......... .......... 98%  186M 0s
 68000K .......... .......... .......... .......... .......... 98%  110M 0s
 68050K .......... .......... .......... .......... .......... 99% 60.8M 0s
 68100K .......... .......... .......... .......... .......... 99%  158M 0s
 68150K .......... .......... .......... .......... .......... 99%  340M 0s
 68200K .......... .......... .......... .......... .......... 99% 62.8M 0s
 68250K .......... .......... .......... .......... .......... 99% 88.6M 0s
 68300K .......... .......... .......... .......... .......... 99% 90.4M 0s
 68350K .......... .......... .......... .......... .......... 99%  207M 0s
 68400K .......... .......... .......... .......... .......... 99% 86.5M 0s
 68450K .......... .......... .......... .......... .......... 99% 54.9M 0s
 68500K .......... .......... .......... .......... .......... 99%  223M 0s
 68550K .......... .......... .......... .......... .......... 99%  356M 0s
 68600K .......... .......... .......... .......... .......... 99% 62.5M 0s
 68650K .......... .......... .......... .......... .......... 99% 76.7M 0s
 68700K .......... .......... .......... .........            100%  296M=0.7s
2018-03-06 13:34:18 (96.0 MB/s) - 'boost_1_59_0.tar.bz2' saved [70389425/70389425]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mysql-5.7.21-20.1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 autodeps ndb sphinx system_boost systemtap tests
--without:	 big_tables federated innodb raid rocksdb ssl tcpd tokudb
Writing git revision for tag auto/ti/mysql-5.7.21-20.1
Tag auto/ti/mysql-5.7.21-20.1 already exists
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.27577
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf percona-server-5.7.21-20
Begin-TLD-Builder-Info
Build-Time: user:6.59s sys:1.46s real:12.94s (faults io:137 non-io:332516)
End-TLD-Builder-Info