2021-10-14 22:35:52,041 [INFO] {751} 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-7050-1300-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: 0:00:34 ago on Thu Oct 14 22:36:33 2021.
Error: 
 Problem 1: conflicting requests
  - nothing provides /usr/bin/python3 needed by dnf-4.2.15-8.oe1.noarch
 Problem 2: conflicting requests
  - nothing provides /usr/bin/python3 needed by dnf-plugins-core-4.0.11-5.oe1.noarch
(try to add '--skip-broken' to skip uninstallable packages)