ices/62767.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#62767

mod foo {
    pub enum Foo {
        Foo(i32),
    }
}
use foo::*;
use Foo::Foo;

=== stdout ===
=== stderr ===
warning: unused import: `Foo::Foo`
 --> /home/runner/work/glacier/glacier/ices/62767.rs:7:5
  |
7 | use Foo::Foo;
  |     ^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error[E0601]: `main` function not found in crate `62767`
 --> /home/runner/work/glacier/glacier/ices/62767.rs:1:1
  |
1 | / mod foo {
2 | |     pub enum Foo {
3 | |         Foo(i32),
4 | |     }
5 | | }
6 | | use foo::*;
7 | | use Foo::Foo;
  | |_____________^ consider adding a `main` function to `/home/runner/work/glacier/glacier/ices/62767.rs`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0601`.
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