ices/78246.rs: fixed with errors

=== stdout ===
=== stderr ===
warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
 --> /home/runner/work/glacier/glacier/ices/78246.rs:1:12
  |
1 | #![feature(const_generics, const_evaluatable_checked)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default
  = note: see issue #44580 <rust-lang/rust#44580> for more information

warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
 --> /home/runner/work/glacier/glacier/ices/78246.rs:1:28
  |
1 | #![feature(const_generics, const_evaluatable_checked)]
  |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: see issue #76560 <rust-lang/rust#76560> for more information

error[E0308]: mismatched types
  --> /home/runner/work/glacier/glacier/ices/78246.rs:15:28
   |
15 |     fn into_bytes(self) -> Self::Array {}
   |        ----------          ^^^^^^^^^^^ expected array `[(); _]`, found `()`
   |        |
   |        implicitly returns `()` as its body has no tail or `return` expression

error: aborting due to previous error; 2 warnings emitted

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