| warning: creating a shared reference to mutable static is discouraged |
| --> $DIR/reference-to-mut-static-safe.rs:9:14 |
| | |
| LL | let _x = &X; |
| | ^^ shared reference to mutable static |
| | |
| = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> |
| = note: this will be a hard error in the 2024 edition |
| = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior |
| = note: `#[warn(static_mut_refs)]` on by default |
| help: use `addr_of!` instead to create a raw pointer |
| | |
| LL | let _x = addr_of!(X); |
| | ~~~~~~~~~~~ |
| |
| error[E0133]: use of mutable static is unsafe and requires unsafe function or block |
| --> $DIR/reference-to-mut-static-safe.rs:9:15 |
| | |
| LL | let _x = &X; |
| | ^ use of mutable static |
| | |
| = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior |
| |
| error: aborting due to 1 previous error; 1 warning emitted |
| |
| For more information about this error, try `rustc --explain E0133`. |
