Revert "build-rust-{crate,package}: cleanups"

  dependencies,

  crateFeatures, crateRenames, libName, release, libPath,

  crateType, metadata, crateBin, hasCrateBin,

  extraRustcOpts,

  extraRustcOpts, verbose, colors,

  buildTests,

  codegenUnits

}:

      ++ (map (x: "--crate-type ${x}") crateType)

    );

    binRustcOpts = lib.concatStringsSep " " baseRustcOpts;

    binRustcOpts = lib.concatStringsSep " " (

      baseRustcOpts

    );

    build_bin = if buildTests then "build_bin_test" else "build_bin";

  in ''

          (crate.features ++ features)

        );

      libName = crate.libName or crate.crateName;

      libName = if crate ? libName then crate.libName else crate.crateName;

      libPath = lib.optionalString (crate ? libPath) crate.libPath;

      # Seed the symbol hashes with something unique every time.

      colors = lib.attrByPath [ "colors" ] "always" crate;

      extraLinkFlags = lib.concatStringsSep " " (crate.extraLinkFlags or [ ]);

      edition = crate.edition or null;

      codegenUnits = crate.codegenUnits or 1;

      codegenUnits = if crate ? codegenUnits then crate.codegenUnits else 1;

      extraRustcOpts =

        lib.optionals (crate ? extraRustcOpts) crate.extraRustcOpts

          ++ extraRustcOpts_

, buildInputs ? []

, nativeBuildInputs ? []

, cargoUpdateHook ? ""

, cargoDepsHook ? ""

, buildType ? "release"

, meta ? {}

, cargoLock ? null