ices/95421.rs: fixed with errors

=== stdout ===
=== stderr ===
error[E0277]: expected a `Fn<(&'x u32,)>` closure, found `fn(&'x u32)`
 --> /home/runner/work/glacier/glacier/ices/95421.rs:9:5
  |
9 |     h5(|_|{})
  |     ^^ expected an `Fn<(&'x u32,)>` closure, found `fn(&'x u32)`
  |
  = help: the trait `for<'x> Fn<(&'x u32,)>` is not implemented for `fn(&'x u32)`
note: required by a bound in `h5`
 --> /home/runner/work/glacier/glacier/ices/95421.rs:4:26
  |
2 | fn h5<T>(_: T)
  |    -- required by a bound in this function
3 | where
4 |     for<'x> fn(&'x u32): Fn(&'x u32),
  |                          ^^^^^^^^^^^ required by this bound in `h5`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
==============

Author: rustbot