Unhelpful error message because of inner line doc

[calixteman]

The code

fn main() {
    let x = 0;
    let y = x.max(1) //!foo
        .min(2);
}

I get this error:

error: expected one of `.`, `;`, `?`, or an operator, found `//!foo`
 --> src/main.rs:3:22
  |
3 |     let y = x.max(1) //!foo
  |                      ^^^^^^ expected one of `.`, `;`, `?`, or an operator here

Probably something like:

error: expected outer doc comment
 --> src/main.rs:3:16
  |
3 |     let y = x; //!foo
  |                ^^^^^^
  |
  = note: inner doc comments like this (starting with `//!` or `/*!`) can only appear before items

is more helpful because at least you can understand what's wrong (especially when you don't know inner doc comments).