ices/87558.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#87558

#![feature(unboxed_closures)]

struct ErrorKind;
struct Error(ErrorKind);
impl Fn(&isize) for Error {
    fn from() {}
}

fn main() {}

=== stdout ===
=== stderr ===
error[E0407]: method `from` is not a member of trait `Fn`
 --> /home/runner/work/glacier/glacier/ices/87558.rs:6:5
  |
6 |     fn from() {}
  |     ^^^^^^^^^^^^ not a member of trait `Fn`

error[E0229]: associated type bindings are not allowed here
 --> /home/runner/work/glacier/glacier/ices/87558.rs:5:6
  |
5 | impl Fn(&isize) for Error {
  |      ^^^^^^^^^^ associated type not allowed here

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0229, E0407.
For more information about an error, try `rustc --explain E0229`.
==============