[...]

 67900K .......... .......... .......... .......... .......... 98%  465M 0s
 67950K .......... .......... .......... .......... .......... 98% 76.2M 0s
 68000K .......... .......... .......... .......... .......... 98% 82.9M 0s
 68050K .......... .......... .......... .......... .......... 99% 82.5M 0s
 68100K .......... .......... .......... .......... .......... 99%  475M 0s
 68150K .......... .......... .......... .......... .......... 99% 4.30M 0s
 68200K .......... .......... .......... .......... .......... 99%  416M 0s
 68250K .......... .......... .......... .......... .......... 99% 74.0M 0s
 68300K .......... .......... .......... .......... .......... 99% 94.0M 0s
 68350K .......... .......... .......... .......... .......... 99% 79.3M 0s
 68400K .......... .......... .......... .......... .......... 99%  463M 0s
 68450K .......... .......... .......... .......... .......... 99% 72.7M 0s
 68500K .......... .......... .......... .......... .......... 99% 80.1M 0s
 68550K .......... .......... .......... .......... .......... 99% 81.7M 0s
 68600K .......... .......... .......... .......... .......... 99% 78.8M 0s
 68650K .......... .......... .......... .......... .......... 99%  433M 0s
 68700K .......... .......... .......... .........            100% 5.72M=2.0s
2018-10-12 12:52:16 (34.2 MB/s) - 'boost_1_59_0.tar.bz2' saved [70389425/70389425]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/mysql-5.7.23-23.1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at a67b37d - updated to 5.7.23-23, cleanup patches
fatal: HEAD does not point to a branch
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-5.7.23-23.1
On detached HEAD. Use -r BRANCHNAME to override
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.79990
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf percona-server-5.7.23-23
Begin-TLD-Builder-Info
Build-Time: user:6.38s sys:0.80s real:15.83s (faults io:0 non-io:343846)
Files queued for ftp:
 145283705 mysql-5.7.23-23.1.src.rpm
       187 mysql-5.7.23-23.1.src.rpm.uploadinfo
End-TLD-Builder-Info