| error[E0277]: the type `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary |
| --> $DIR/not-panic-safe-5.rs:9:5 |
| | |
| LL | fn assert<T: UnwindSafe + ?Sized>() {} |
| | ------ ---------- required by this bound in `assert` |
| ... |
| LL | assert::<*const UnsafeCell<i32>>(); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary |
| | |
| = help: the trait `std::panic::RefUnwindSafe` is not implemented for `std::cell::UnsafeCell<i32>` |
| = note: required because of the requirements on the impl of `std::panic::UnwindSafe` for `*const std::cell::UnsafeCell<i32>` |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |