Crate level attribute does not work in file included by include macro

[hehaoqian]

I want to share deny warnings settings among multiple crates,
so I want to use the include! macro to include files

I tried this code:

// main.rs
include!("deny_warnings.rs");

fn main() {
}

// deny_warnings.rs
#![deny(warnings)]

I expected to see this happen: Compilation success

Instead, this happened:

error: an inner attribute is not permitted in this context
--> deny_warnings.rs:1:1
|
1 | #![deny(warnings)]
| ^^^^^^^^^^^^^^^^^^
|
= note: inner attributes, like #![no_std], annotate the item enclosing them, and are usually found at the beginning of source files
= note: outer attributes, like #[test], annotate the item following them

error: expected item after attributes
--> deny_warnings.rs:1:1
|
1 | #![deny(warnings)]
| ^^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors

Meta

rustc --version --verbose:

rustc 1.61.0 (fe5b13d68 2022-05-18)
binary: rustc
commit-hash: fe5b13d681f25ee6474be29d748c65adcd91f69e
commit-date: 2022-05-18
host: x86_64-unknown-linux-gnu
release: 1.61.0
LLVM version: 14.0.0

Backtrace

[ehuss]

Closing as a duplicate of #66920 (and #47995 and #18810 and rust-lang/rfcs#752).