See https://copr.fedorainfracloud.org/coprs/g/python/python3.8/package/espresso/ for actual logs. This report is automated and not very verbose, but feel free to ping me for help.
I don't think this has anything to do with python-3.8, but is just another reincarnation of the broken openmpi-4 (see https://github.com/openucx/ucx/issues/3558)
It built now.