[Rust] EPEL8 support

[Orion Poplawski]

Is there any possibility of reasonable rust support in EPEL8?  At the 
moment we don't have rust-packaging or cargo2rpm/rust2rpm.  CentOS 
stream 8 seems to have rust/carge 1.66.1 and rust-srpm-macros 5-2.

-- 
Orion Poplawski
he/him/his  - surely the least important thing about me
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