ices/78246.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#78246

#![feature(const_generics, const_evaluatable_checked)]

pub trait Ice {
    type Array;

    fn into_bytes(self) -> Self::Array;
}

impl<T: Ice, const N: usize> Ice for [T; N]
where
    [(); std::mem::size_of::<T::Array>() * N]: ,
{
    type Array = [(); std::mem::size_of::<T::Array>() * N];

    fn into_bytes(self) -> Self::Array {}
}

fn main() {}

=== 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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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`.
==============