ices/89022-2.rs: fixed with no errors

=== stdout ===
=== stderr ===
warning: the feature `adt_const_params` is incomplete and may not be safe to use and/or cause compiler crashes
 --> /home/runner/work/glacier/glacier/ices/89022-2.rs:1:12
  |
1 | #![feature(adt_const_params)]
  |            ^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default
  = note: see issue #44580 <rust-lang/rust#44580> for more information

warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
 --> /home/runner/work/glacier/glacier/ices/89022-2.rs:2:12
  |
2 | #![feature(generic_const_exprs)]
  |            ^^^^^^^^^^^^^^^^^^^
  |
  = note: see issue #76560 <rust-lang/rust#76560> for more information

warning: unused variable: `map`
   --> /home/runner/work/glacier/glacier/ices/89022-2.rs:239:9
    |
239 |     let map: RestrictedStringMap<KeyCons<KeyNil, "k1">> = map.remove_key::<_, "k2">();
    |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: variable does not need to be mutable
   --> /home/runner/work/glacier/glacier/ices/89022-2.rs:237:9
    |
237 |     let mut map: RestrictedStringMap<KeyCons<KeyCons<KeyNil, "k1">, "k2">> =
    |         ----^^^
    |         |
    |         help: remove this `mut`
    |
    = note: `#[warn(unused_mut)]` on by default

warning: function is never used: `foo`
   --> /home/runner/work/glacier/glacier/ices/89022-2.rs:235:4
    |
235 | fn foo() {
    |    ^^^
    |
    = note: `#[warn(dead_code)]` on by default

warning: 5 warnings emitted

==============

Author: rustbot