error[E0277]: `RefCell<()>` cannot be shared between threads safely
- --> $DIR/suggest-ref-cell.rs:8:20
+ --> $DIR/suggest-ref-cell.rs:6:20
|
LL | require_sync::<std::cell::RefCell<()>>();
| ^^^^^^^^^^^^^^^^^^^^^^ `RefCell<()>` cannot be shared between threads safely
= help: the trait `Sync` is not implemented for `RefCell<()>`
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
note: required by a bound in `require_sync`
- --> $DIR/suggest-ref-cell.rs:3:20
+ --> $DIR/suggest-ref-cell.rs:1:20
|
LL | fn require_sync<T: Sync>() {}
| ^^^^ required by this bound in `require_sync`