2021-10-14 22:56:32,096 [INFO] {1074} koji.build.buildroot:540 Running mock as kojibuilder
INFO: mock.py version 2.9 starting (python version = 3.9.4, NVR = mock-2.9-1.fc33)...
Start(bootstrap): init plugins
INFO: selinux enabled
Finish(bootstrap): init plugins
Start: init plugins
INFO: selinux enabled
Finish: init plugins
INFO: Signal handler active
Start: run
Start: clean chroot
Finish: clean chroot
Start(bootstrap): chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 2.9
INFO: Mock Version: 2.9
Start(bootstrap): dnf install
ERROR: Command failed: 
 # /usr/bin/dnf --installroot /var/lib/mock/oe1b-build-7054-1301-bootstrap/root/ --setopt=deltarpm=False --allowerasing --disableplugin=local --disableplugin=spacewalk install dnf dnf-plugins-core --setopt=tsflags=nocontexts
Unable to detect release version (use '--releasever' to specify release version)
No matches found for the following disable plugin patterns: local, spacewalk
Last metadata expiration check: 0:00:33 ago on Thu Oct 14 22:57:20 2021.
No match for argument: dnf
No match for argument: dnf-plugins-core
Error: Unable to find a match: dnf dnf-plugins-core