2020-03-31 13:36:20,942 [INFO] {170904} koji.build.buildroot:518 Running mock as kojibuilder
INFO: mock.py version 1.4.21 starting (python version = 3.8.1)...
Start: init plugins
INFO: selinux enabled
Finish: init plugins
INFO: Signal handler active
Start: run
Start: clean chroot
Finish: clean chroot
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.21
INFO: Mock Version: 1.4.21
Start: dnf install
ERROR: Command failed: 
 # /usr/bin/dnf --installroot /var/lib/mock/f33-build-167122-43504/root/ --setopt=install_weak_deps=0 --disableplugin=local --disableplugin=spacewalk groupinstall build --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
Errors during downloading metadata for repository 'build':
  - Curl error (6): Couldn't resolve host name for http://fedora.riscv.rocks/kojifiles/repos/f33-build/43504/riscv64/repodata/repomd.xml [Could not resolve host: fedora.riscv.rocks]
Error: Failed to download metadata for repo 'build': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried