[rust-lang/rust] `&pin!()` stopped being deref-coerced in rust 1.88

### ROOT CAUSE The issue arises because `std::pin::pin!()` now returns a `Pin<&T>`, and taking a reference to it without dereferencing doesn't trigger the necessary coercion to `&T`. The compiler expects a `&i32` but receives a `Pin<&mut i32>`, leading to a type mismatch. ### CODE FIX To fix the issue, explicitly dereference the `Pin` before taking the reference: ```rust fn main() { let _x: &i32 = &*std::pin::pin!(1i32); } ```