Description of problem: Package python-dask fails to build from source in Fedora rawhide. Version-Release number of selected component (if applicable): 2.30.0-1.fc34~bootstrap Steps to Reproduce: koji build --scratch f34 python-dask-2.30.0-1.fc34~bootstrap.src.rpm Additional info: This package is tracked by Koschei. See: https://koschei.fedoraproject.org/package/python-dask