RA doesn't honor `Cargo.toml` `edition`

[Rudxain]

rust-analyzer version: 1.80.0 (0514789 2024-07-21)

rustc version: 1.80.0 (051478957 2024-07-21)

editor or extension: hx 24.7 (079f5442), AppImage

relevant settings: None?

repository link (if public, optional): None

code snippet to reproduce:
src/main.rs:

fn main() {
    std::env::set_var("", "");
}

Cargo.toml:

[package]
name = "tmp"
version = "0.1.0"
edition = "2021"

description: RA shows a diagnostic that's valid for Edition 2024 "this operation is unsafe and requires an unsafe function or block (E0133)", but not for 2021. cargo check is successful

[Veykril]

We don't have #[rustc_deprecated_safe_2024] implemented

[Rudxain]

I've been thinking, and this bug could be considered a "hacky feature", since it serves as a warning that some code might be undefined-behavior. However, this sort of warnings would be appropriate from Clippy, not RA

[Veykril]

The bug here is simply that we dont have the attribute implemented that marks an unsafe function as safe in editions < 2024. So we consider this function unsafe in all editions right now even though its not