| error[E0277]: the type `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary |
| --> $DIR/interior-mutability.rs:5:5 |
| | |
| LL | catch_unwind(|| { x.set(23); }); |
| | ^^^^^^^^^^^^ `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary |
| | |
| ::: $SRC_DIR/std/src/panic.rs:LL:COL |
| | |
| LL | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> { |
| | ---------- required by this bound in `catch_unwind` |
| | |
| = help: within `Cell<i32>`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<i32>` |
| = note: required because it appears within the type `Cell<i32>` |
| = note: required because of the requirements on the impl of `UnwindSafe` for `&Cell<i32>` |
| = note: required because it appears within the type `[closure@$DIR/interior-mutability.rs:5:18: 5:35]` |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |