= 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@$DIR/interior-mutability.rs:5:18: 5:35 x:&Cell<i32>]`
+ = note: required because it appears within the type `[closure@$DIR/interior-mutability.rs:5:18: 5:35]`
error: aborting due to previous error