2023-04-14 03:13:21,156 [INFO] {297773} koji.build.buildroot:555 Running mock as kojibuilder
INFO: mock.py version 3.0 starting (python version = 3.10.2, NVR = mock-3.0-1.fc36)...
Start(bootstrap): init plugins
INFO: selinux disabled
Finish(bootstrap): init plugins
Start: init plugins
INFO: selinux disabled
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: 3.0
INFO: Mock Version: 3.0
Start(bootstrap): dnf install
ERROR: Command failed: 
 # /usr/bin/dnf --installroot /var/lib/mock/f38-build-side-42-init-devel-442257-20038-bootstrap/root/ --setopt=deltarpm=False --allowerasing --disableplugin=local --disableplugin=spacewalk --disableplugin=versionlock install dnf dnf-plugins-core
Unable to detect release version (use '--releasever' to specify release version)
No matches found for the following disable plugin patterns: local, spacewalk, versionlock
Errors during downloading metadata for repository 'build':
  - Curl error (7): Couldn't connect to server for http://openkoji.iscas.ac.cn/kojifiles/repos/f38-build-side-42-init-devel/20038/riscv64/repodata/repomd.xml [Failed to connect to openkoji.iscas.ac.cn port 80 after 36 ms: Connection refused]
  - Curl error (7): Couldn't connect to server for http://openkoji.iscas.ac.cn/kojifiles/repos/f38-build-side-42-init-devel/20038/riscv64/repodata/repomd.xml [Failed to connect to openkoji.iscas.ac.cn port 80 after 1 ms: Connection refused]
Error: Failed to download metadata for repo 'build': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried