[...]

Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/bind-9.20.4-1.src.rpm
RPM build warnings:
    line 116: It's not recommended to have unversioned Obsoletes: Obsoletes:	caching-nameserver
real 0.18
user 0.16
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
fatal: HEAD does not point to a branch
warning: line 116: It's not recommended to have unversioned Obsoletes: Obsoletes:	caching-nameserver
No conditional flags passed
from available:
--with   :	 dnstap edns_cli epoll hip static_libs system_tests tests
--without:	 doh epoll geoip kerberos5 lmdb ssl
Available branches: AC-branch BIND9 BIND_9_10 DEVEL RA-branch master
bind-9.20.4.tar.xz having proper md5sum already exists
bind-non-english-man-pages.tar.bz2 having proper md5sum already exists
bind-hip.tar.gz having proper md5sum already exists
named.root having proper md5sum already exists
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
warning: line 116: It's not recommended to have unversioned Obsoletes: Obsoletes:	caching-nameserver
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/bind-9.20.4-1.src.rpm
RPM build warnings:
    line 116: It's not recommended to have unversioned Obsoletes: Obsoletes:	caching-nameserver
real 0.19
user 0.17
sys 0.01
warning: line 116: It's not recommended to have unversioned Obsoletes: Obsoletes:	caching-nameserver
Writing git revision for tag tld/bind-9.20.4-1
On detached HEAD. Use -r BRANCHNAME to override
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:2.59s sys:0.66s real:5.87s (faults io:9 non-io:505343)
Files queued for ftp:
   5708543 bind-9.20.4-1.src.rpm
       183 bind-9.20.4-1.src.rpm.uploadinfo
End-TLD-Builder-Info