Current issues with rustPlatform.buildRustPackage:

• Abuses fixed-output derivations: Restrict fixed-output derivations nix#2270
• Should cargo test always run against debug, or the value of buildType

Candidates:

• buildRustCrate with https://github.com/kolloch/crate2nix
• https://github.com/nmattia/naersk
• https://github.com/edolstra/import-cargo
  • POC & needs flakes atm

Comment below changes/additions that can be made to this issue, or edit this issue directly