ices/79099.sh: fixed with errors

[github-actions]

Issue: rust-lang/rust#79099

#!/bin/bash

rustc - << 'EOF'
#![feature(impl_trait_in_bindings)]

struct Bug {
    V1: [(); {
        let f: impl core::future::Future<Output = u8> = async { 1 };
        1
    }],
}

fn main() {}
EOF

=== stdout ===
=== stderr ===
error: expected identifier, found `1`
 --> <anon>:5:65
  |
5 |         let f: impl core::future::Future<Output = u8> = async { 1 };
  |                                                         -----   ^ expected identifier
  |                                                         |
  |                                                         `async` blocks are only allowed in Rust 2018 or later
  |
  = help: set `edition = "2018"` in `Cargo.toml`
  = note: for more on editions, read https://doc.rust-lang.org/edition-guide

error[E0557]: feature has been removed
 --> <anon>:1:12
  |
1 | #![feature(impl_trait_in_bindings)]
  |            ^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
  |
  = note: the implementation was not maintainable, the feature may get reintroduced once the current refactorings are done

error[E0562]: `impl Trait` not allowed outside of function and method return types
 --> <anon>:5:16
  |
5 |         let f: impl core::future::Future<Output = u8> = async { 1 };
  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0557, E0562.
For more information about an error, try `rustc --explain E0557`.
==============