Confusing arrow positioning on macro error message

[varkor]

// main.rs
#[macro_use]
mod other;

fn main() {
    let_var!(foo);
}

// other.rs
macro_rules! let_var {
    ($name:ident) => (
        let $name;
    )
}

Results in:

error[E0282]: type annotations needed
  --> main.rs:5:14
   |
 3 | |
   | |                 ^
   | |_________________|
   | |_________________cannot infer type for `_`
   |                   consider giving `foo` a type
 4 |   fn main() {
 5 |       let_var!(foo);
   |  _____---------^----
   | |_____|________|
   | |     |
   | |     in this macro invocation

The arrow in the first snippet is pointing to a blank snippet (it seems to the end of the line containing the module import). I'm not sure what the ideal case here is, but this seems a little confusing.

[estebank]

CC #32072.