ices/59191.sh: fixed with errors

[github-actions]

Issue: rust-lang/rust#59191

#!/bin/bash

tmp="$(mktemp -d)"

if [[ ! $tmp || ! -d $tmp ]]
then
    echo "Could not create temporary directory"
    exit 1
fi

cleanup() {
    rm -r "$tmp"
}

trap cleanup EXIT

cd "$tmp"

rustc --crate-type proc-macro - <<END
extern crate proc_macro;

use proc_macro::{Delimiter, Group, Ident, Span, TokenStream, TokenTree};

#[proc_macro_attribute]
pub fn no_main(_attrs: TokenStream, input: TokenStream) -> TokenStream {
    let mut ts = TokenStream::new();
    ts.extend(vec![
        TokenTree::Ident(Ident::new("fn", Span::call_site())),
        TokenTree::Ident(Ident::new("main", Span::call_site())),
        TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())),
        TokenTree::Group(Group::new(Delimiter::Brace, input)),
    ]);
    ts
}
END

rustc --extern no_main=librust_out.so - <<END
#![no_main::no_main]
END

=== stdout ===
=== stderr ===
error[E0658]: non-builtin inner attributes are unstable
 --> <anon>:1:1
  |
1 | #![no_main::no_main]
  | ^^^^^^^^^^^^^^^^^^^^
  |
  = note: for more information, see https://github.com/rust-lang/rust/issues/54726
  = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable

error[E0468]: an `extern crate` loading macros must be at the crate root

error: expected crate top-level item to be a module after macro expansion, found a function
 --> <anon>:1:1
  |
1 | #![no_main::no_main]
  | ^^^^^^^^^^^^^^^^^^^^

error[E0433]: failed to resolve: maybe a missing crate `std`?

error[E0601]: `main` function not found in crate `rust_out`
 --> <anon>:1:1
  |
1 | #![no_main::no_main]
  | ^^^^^^^^^^^^^^^^^^^^ consider adding a `main` function at the crate level

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0433, E0468, E0601, E0658.
For more information about an error, try `rustc --explain E0433`.
==============

[JohnTitor]

Closing in favor of #281