Coercing higher-ranked function definitions to non-hr function pointers doesn't work

I tried this code:

fn foo() {
    let _: [fn(_); 2] = [x, y];
}
fn x(_: &str) {
    todo!()
}
fn y(_: &str) {
    todo!()
}

I expected to see this happen: compiles

Instead, this happened:

error[E0308]: mismatched types
 --> src/lib.rs:2:29
  |
2 |     let _: [fn(_); 2] = [x, y];
  |                             ^ one type is more general than the other
  |
  = note: expected fn pointer `fn(&_)`
                found fn item `for<'a> fn(&'a _) {y}`

For more information about this error, try `rustc --explain E0308`.

Meta

rustc --version --verbose:

stable 1.89

Reproduce the example in src/lib.rs with rustc 1.89 and inspect the E0308 diagnostic for the array of function definitions coerced to fn pointers. Trace the handling of higher-ranked function items and non-higher-ranked function pointer coercions. Done means the provided example compiles without changing its intended types.