| error[E0277]: `OnceCell<()>` cannot be shared between threads safely |
| --> $DIR/suggest-once-cell.rs:6:20 |
| | |
| LL | require_sync::<std::cell::OnceCell<()>>(); |
| | ^^^^^^^^^^^^^^^^^^^^^^^ `OnceCell<()>` cannot be shared between threads safely |
| | |
| = help: the trait `Sync` is not implemented for `OnceCell<()>` |
| = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::OnceLock` instead |
| note: required by a bound in `require_sync` |
| --> $DIR/suggest-once-cell.rs:1:20 |
| | |
| LL | fn require_sync<T: Sync>() {} |
| | ^^^^ required by this bound in `require_sync` |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |
