let
rust_overlay = import (builtins.fetchTarball
"https://github.com/oxalica/rust-overlay/archive/master.tar.gz");
pkgs = import <nixpkgs> { overlays = [ rust_overlay ]; };
rustVersion = "1.78.0";
rust = pkgs.rust-bin.stable.${rustVersion}.default.override {
extensions = [ "rust-src" "rust-analyzer" ];
};
in pkgs.mkShell rec {
buildInputs = [ rust ];
RUST_BACKTRACE = 1;
}