2018-11-25 17:44:12,860 [INFO] {32093} koji.build.buildroot:440 Running mock as kojibuilder
INFO: mock.py version 1.4.13 starting (python version = 3.7.0)...
Start: init plugins
INFO: selinux disabled
Finish: init plugins
Start: run
Start: clean chroot
Finish: clean chroot
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.13
INFO: Mock Version: 1.4.13
Start: dnf install
ERROR: Command failed: 
 # /usr/bin/dnf --installroot /var/lib/mock/f29-build-33424-18131/root/ --setopt=install_weak_deps=0 groupinstall appliance-build
Unable to detect release version (use '--releasever' to specify release version)
Last metadata expiration check: 0:03:18 ago on Sun Nov 25 17:44:23 2018.
No match for group package "grub"
Error: 
 Problem: package python2-imgcreate-1:25.0-11.0.riscv64.fc29.riscv64 requires python2-dnf >= 1.1.0, but none of the providers can be installed
  - package appliance-tools-008.0-10.fc29.noarch requires python2-imgcreate >= 1:25.0-2, but none of the providers can be installed
  - package python2-dnf-4.0.4-2.0.riscv64.fc29.noarch requires python2-libdnf, but none of the providers can be installed
  - package python2-dnf-4.0.4-2.0.riscv64.fc29.noarch requires python2-libdnf >= 0.22.0, but none of the providers can be installed
  - conflicting requests
  - nothing provides libsolv.so.0()(64bit) needed by python2-libdnf-0.22.0-8.fc29.riscv64
  - nothing provides libsolvext.so.0()(64bit) needed by python2-libdnf-0.22.0-8.fc29.riscv64