Created attachment 1678161 [details] mock log Description of problem: while running mock on CentOS 8 I am getting a lot of messages like rpmlib(PayloadIsZstd) <= 5.4.18-1 is needed by foo_package mock-1.4.21-1.el8.noarch Full log attached
This is only because rpm in RHEL/CentOS 8 currently does not support zstd payloads. This will be fixed with RHEL/CentOS 8.2. Alternatively, you can upgrade to CentOS Stream and get the fix now. rpm-4.14.2-36.el8 has the functionality available.
Or you can update mock to 2.2 (epel-testing), and use --use-bootstrap-image option: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-5a84e15907