Misspelling of macro_rules!

[booleancoercion]

Consider the following snippet:

marco_rules! thing {
    () => {}
}

It might look completely fine at first, but then rustc spits out this error message:

error: expected one of `(`, `[`, or `{`, found `thing`
 --> src/lib.rs:1:14
  |
1 | marco_rules! thing {
  |              ^^^^^ expected one of `(`, `[`, or `{`

The actual problem is that macro_rules is misspelled as ma*rc*o_rules. It took me a while to see the problem myself when I encountered it.

Could there possibly be a lint that checks for this case and gives a proper error message? The current one is extra misleading since it even points away from the actual source of the error.