ices/109148.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#109148

#[std( = )]
extern crate blah as std;
use std::arch;

fn main() {}

=== stdout ===
=== stderr ===
error[E0463]: can't find crate for `blah`
 --> /home/runner/work/glacier/glacier/ices/109148.rs:2:1
  |
2 | extern crate blah as std;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate

error: macro-expanded `extern crate` items cannot shadow names passed with `--extern`
 --> /home/runner/work/glacier/glacier/ices/109148.rs:2:1
  |
2 | extern crate blah as std;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^

error: cannot find attribute `std` in this scope
 --> /home/runner/work/glacier/glacier/ices/109148.rs:1:3
  |
1 | #[std( = )]
  |   ^^^
  |
  = note: `std` is in scope, but it is a crate, not an attribute

warning: unused import: `std::arch`
 --> /home/runner/work/glacier/glacier/ices/109148.rs:3:5
  |
3 | use std::arch;
  |     ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error: aborting due to 3 previous errors; 1 warning emitted

For more information about this error, try `rustc --explain E0463`.
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