nixos-combined-flake/modules/nixvim/plugins/lsp/languages/rust.nix

{
  plugins = {
    rustaceanvim = {
      enable = true;
      settings = {
        server = {
          default_settings = {
            rust-analyzer = {
              check = {
                command = "clippy";
              };
            };
          };
        };
      };
    };
    crates-nvim.enable = true;
  };
}