https://bugzilla.redhat.com/show_bug.cgi?id=2080743
--- Comment #3 from Petr Menšík pemensik@redhat.com --- Spec URL: https://pemensik.fedorapeople.org/rust-domain.spec SRPM URL: https://pemensik.fedorapeople.org/rust-domain-0.6.1-1.fc35.src.rpm
Updated spec to provide ring dependent features on arches excluding power64 and s390x, according to comment #2. That way it would still build on powerpc, but without validation ability.