ices/77329.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#77329

fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
    std::iter::empty()
}

=== stdout ===
=== stderr ===
warning: unnecessary braces around const expression
 --> /home/runner/work/glacier/glacier/ices/77329.rs:1:42
  |
1 | fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
  |                                          ^^^^^^^^^^^^^^^^^^^ help: remove these braces
  |
  = note: `#[warn(unused_braces)]` on by default

error[E0601]: `main` function not found in crate `77329`
 --> /home/runner/work/glacier/glacier/ices/77329.rs:1:1
  |
1 | / fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
2 | |     std::iter::empty()
3 | | }
  | |_^ consider adding a `main` function to `/home/runner/work/glacier/glacier/ices/77329.rs`

error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
 --> /home/runner/work/glacier/glacier/ices/77329.rs:1:45
  |
1 | fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
  |                                             ^ doesn't have a size known at compile-time
  |
  = help: the trait `Sized` is not implemented for `[u8]`
  = help: unsized locals are gated as an unstable feature
help: function arguments must have a statically known size, borrowed types always have a known size
  |
1 | fn bug<T>() -> impl Iterator<Item = [(); { |x: &[u8]| { x } }]> {
  |                                                ^

error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
 --> /home/runner/work/glacier/glacier/ices/77329.rs:1:54
  |
1 | fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
  |                                                      ^ doesn't have a size known at compile-time
  |
  = help: the trait `Sized` is not implemented for `[u8]`
  = note: the return type of a function must have a statically known size

error[E0308]: mismatched types
 --> /home/runner/work/glacier/glacier/ices/77329.rs:1:44
  |
1 | fn bug<T>() -> impl Iterator<Item = [(); { |x: [u8]| { x } }]> {
  |                                            ^^^^^^^^^^^^^^^ expected `usize`, found closure
  |
  = note: expected type `usize`
          found closure `[closure@/home/runner/work/glacier/glacier/ices/77329.rs:1:44: 1:59]`

error: aborting due to 4 previous errors; 1 warning emitted

Some errors have detailed explanations: E0277, E0308, E0601.
For more information about an error, try `rustc --explain E0277`.
==============