| error[E0038]: the trait `Bar` cannot be made into an object |
| --> $DIR/issue-72410.rs:14:19 |
| | |
| LL | where for<'a> &'a mut [dyn Bar]: ; |
| | ^^^^^^^^^^^^^^^^^ `Bar` 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-72410.rs:13:8 |
| | |
| LL | pub trait Bar { |
| | --- this trait cannot be made into an object... |
| LL | fn map() |
| | ^^^ ...because associated function `map` has no `self` parameter |
| help: consider turning `map` into a method by giving it a `&self` argument |
| | |
| LL | fn map(&self) |
| | +++++ |
| help: alternatively, consider constraining `map` so it does not apply to trait objects |
| | |
| LL | where for<'a> &'a mut [dyn Bar]:, Self: Sized ; |
| | +++++++++++++ |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0038`. |
