[...]

SRPMS/mysql-5.7.27-30.1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 52cbe18 - updated to 5.7.27-30
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-5.7.27-30.1
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.25311
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf percona-server-5.7.27-30
Begin-TLD-Builder-Info
Build-Time: user:8.29s sys:3.02s real:26.79s (faults io:187 non-io:328967)
Files queued for ftp:
 150375021 mysql-5.7.27-30.1.src.rpm
       187 mysql-5.7.27-30.1.src.rpm.uploadinfo
End-TLD-Builder-Info