See https://copr.fedorainfracloud.org/coprs/g/python/python3.8/package/radicale/ for actual logs. This report is automated and not very verbose, but feel free to ping me for help.
It fails also in rawhide with an error: + /usr/sbin/hardlink -cv /builddir/build/BUILDROOT/radicale-2.1.10-2.fc31.noarch/usr/share/selinux BUILDSTDERR: /var/tmp/rpm-tmp.CKJeDP: line 75: /usr/sbin/hardlink: No such file or directory BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.CKJeDP (%install) It is caused, because hardlink was merged to unix-linux and the path was changed from /usr/sbin/hardlink to /usr/bin/hardlink
I've fixed the hardlink problem. The build log is no longer available, could you build it again it python 3.8?
It built, thanks: https://copr.fedorainfracloud.org/coprs/g/python/python3.8/package/radicale/