E.g. my scratch build of ceph ( https://koji.fedoraproject.org/koji/taskinfo?taskID=92955292) failsthusly:
...
DEBUG util.py:443: Error: DEBUG util.py:443: Problem: package perl-Archive-Tar-2.40-490.fc37.noarch requires perl(IO::Uncompress::UnXz), but none of the providers can be installed DEBUG util.py:443: - package perl-Archive-Tar-2.40-490.fc37.noarch requires perl(IO::Compress::Xz), but none of the providers can be installed DEBUG util.py:443: - package perl-4:5.36.0-492.fc38.x86_64 requires perl-Archive-Tar, but none of the providers can be installed DEBUG util.py:443: - package perl-IO-Compress-Lzma-2.201-2.fc37.noarch requires perl(Compress::Raw::Lzma) >= 2.201, but none of the providers can be installed DEBUG util.py:443: - conflicting requestsDEBUG util.py:443: - nothing provides xz-libs(x86-64) = 5.2.6 needed by perl-Compress-Raw-Lzma-2.201-3.fc38.x86_64
...