| error[E0038]: the trait `Foo` cannot be made into an object |
| --> $DIR/issue-38604.rs:14:13 |
| | |
| LL | let _f: Box<dyn Foo> = |
| | ^^^^^^^^^^^^ `Foo` cannot be made into an object |
| | |
| note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/issue-38604.rs:2:22 |
| | |
| LL | trait Foo where u32: Q<Self> { |
| | --- ^^^^^^^ ...because it uses `Self` as a type parameter |
| | | |
| | this trait cannot be made into an object... |
| = help: only type `()` implements the trait, consider using it directly instead |
| |
| error[E0038]: the trait `Foo` cannot be made into an object |
| --> $DIR/issue-38604.rs:15:9 |
| | |
| LL | Box::new(()); |
| | ^^^^^^^^^^^^ `Foo` cannot be made into an object |
| | |
| note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/issue-38604.rs:2:22 |
| | |
| LL | trait Foo where u32: Q<Self> { |
| | --- ^^^^^^^ ...because it uses `Self` as a type parameter |
| | | |
| | this trait cannot be made into an object... |
| = help: only type `()` implements the trait, consider using it directly instead |
| = note: required for the cast from `Box<()>` to `Box<dyn Foo>` |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0038`. |
