message: Better error message in `RustType` conversion failure
diff: @@ -69,7 +69,7 @@ impl TryFrom<Type> for RustType {
  fn try_from(value: Type) -> core::result::Result<Self, Self::Error> {
  match value {
  Type::Path(type_path) => Ok(RustType(type_path.path)),
  - _ => Err("cannot convert to RustType".to_string()),
  + broken => Err(format!("cannot convert {:?} input to RustType", broken)),
  }
  }
  }
  