| error[E0277]: `Rc<()>` cannot be sent between threads safely |
| --> $DIR/issue-21763.rs:11:11 |
| | |
| LL | foo::<HashMap<Rc<()>, Rc<()>>>(); |
| | ^^^^^^^^^^^^^^^^^^^^^^^ `Rc<()>` cannot be sent between threads safely |
| | |
| = help: within `(Rc<()>, Rc<()>)`, the trait `Send` is not implemented for `Rc<()>`, which is required by `HashMap<Rc<()>, Rc<()>>: Send` |
| = note: required because it appears within the type `(Rc<()>, Rc<()>)` |
| = note: required for `hashbrown::raw::RawTable<(Rc<()>, Rc<()>)>` to implement `Send` |
| note: required because it appears within the type `hashbrown::map::HashMap<Rc<()>, Rc<()>, RandomState>` |
| --> $HASHBROWN_SRC_LOCATION |
| note: required because it appears within the type `HashMap<Rc<()>, Rc<()>>` |
| --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL |
| note: required by a bound in `foo` |
| --> $DIR/issue-21763.rs:8:11 |
| | |
| LL | fn foo<T: Send>() {} |
| | ^^^^ required by this bound in `foo` |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |
