unsafe(#[attribute]) not working #146840
Description
I have this code
#[syscalls] extern "C" { pub fn exit(code: i32) -> usize; }which fails to compile:
error: unsafe attribute used without unsafe --> crates/syscalls/src/lib.rs:9:1 | 9 | #[syscalls] | ^^^^^^^^^^^ usage of unsafe attribute | = note: this error originates in the attribute macro `syscalls` (in Nightly builds, run with -Z macro-backtrace for more info) help: wrap the attribute in `unsafe(...)` | 9 | unsafe(#[syscalls]) | +++++++ +so I try what it says:
unsafe(#[syscalls]) extern "C" { pub fn exit(code: i32) -> usize; }and get another compilation error:
error: expected item, found keyword `unsafe` --> crates/syscalls/src/lib.rs:9:1 | 9 | unsafe(#[syscalls]) | ^^^^^^ expected itemMeta
rustc --version --verbose:
rustc 1.92.0-nightly (dd7fda570 2025-09-20) binary: rustc commit-hash: dd7fda570040e8a736f7d8bc28ddd1b444aabc82 commit-date: 2025-09-20 host: x86_64-unknown-linux-gnu release: 1.92.0-nightly LLVM version: 21.1.1 Backtrace
<backtrace>