small nix script for nix-shell for Rust projects

nixShellRust.nix

let
  mozilla = import (builtins.fetchTarball https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz);
  nixpkgs = import <nixpkgs> { overlays = [ mozilla ]; };
in

with nixpkgs;

mkShell {
  buildInputs = [
    clang # needed for bindgen
    latest.rustChannels.nightly.rust
    openssl
    pkgconfig # needed for libdbus-sys to find the paths
    dbus.dev
  ];

  LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
}