message: fix(build): make rustc error msg a little better
diff: @@ -18,7 +18,7 @@ pub fn check_rustc_version(step: &Step) -> Result<String, Error> {
  if mv < 30 {
  return Err(Error::RustcVersion {
  message: format!(
  - "Your version of Rust, '{}', is not supported. Please install Rust version 1.30.0 or higher.",
  + "Your version of Rust, '1.{}', is not supported. Please install Rust version 1.30.0 or higher.",
  mv.to_string()
  ),
  local_minor_version: mv.to_string(),
  