ices/71316.sh: fixed with errors

[github-actions]

Issue: rust-lang/rust#71316

#!/bin/bash

rustc -Zunleash-the-miri-inside-of-you - << END

#![feature(const_raw_ptr_deref)]
#![feature(const_mut_refs)]
#![allow(const_err)]

use std::cell::UnsafeCell;

// make sure we do not just intern this as mutable
const MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _;

fn main() {}

END

=== stdout ===
=== stderr ===
warning: constant is never used: `MUTABLE_BEHIND_RAW`
 --> <anon>:9:1
  |
9 | const MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

error: untyped pointers are not allowed in constant
 --> <anon>:9:1
  |
9 | const MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: skipping const checks
  |
help: skipping check that does not even have a feature gate
 --> <anon>:9:38
  |
9 | const MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _;
  |                                      ^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error; 2 warnings emitted

==============