message: mention that we get the toolchain right
diff: @@ -268,7 +268,7 @@ fn setup(ask_user: bool) {
  let src = Path::new(sysroot.trim_end_matches('\n')).join("lib").join("rustlib").join("src");
  if !src.exists() {
  if ask_user {
  - ask("It seems you do not have the rust-src component installed. I will run `rustup component add rust-src`. Proceed?");
  + ask("It seems you do not have the rust-src component installed. I will run `rustup component add rust-src` for the selected toolchain. Proceed?");
  } else {
  println!("Installing rust-src component: `rustup component add rust-src`");
  }
  