| error[E0277]: `Rc<i8>` cannot be sent between threads safely |
| --> $DIR/builtin-superkinds-simple.rs:6:14 |
| | |
| LL | impl Foo for std::rc::Rc<i8> { } |
| | ^^^^^^^^^^^^^^^ `Rc<i8>` cannot be sent between threads safely |
| | |
| = help: the trait `Send` is not implemented for `Rc<i8>` |
| note: required by a bound in `Foo` |
| --> $DIR/builtin-superkinds-simple.rs:4:13 |
| | |
| LL | trait Foo : Send { } |
| | ^^^^ required by this bound in `Foo` |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |