| error[E0038]: the trait `FromResidual` cannot be made into an object |
| --> $DIR/canonicalize-fresh-infer-vars-issue-103626.rs:10:17 |
| | |
| LL | let b: &dyn FromResidual = &(); |
| | ^^^^^^^^^^^^ |
| | |
| = note: it cannot use `Self` as a type parameter in a supertrait or `where`-clause |
| |
| error[E0038]: the trait `FromResidual` cannot be made into an object |
| --> $DIR/canonicalize-fresh-infer-vars-issue-103626.rs:10:12 |
| | |
| LL | let b: &dyn FromResidual = &(); |
| | ^^^^^^^^^^^^^^^^^ `FromResidual` 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/canonicalize-fresh-infer-vars-issue-103626.rs:2:8 |
| | |
| LL | trait FromResidual<R = <Self as Try>::Residual> { |
| | ------------ this trait cannot be made into an object... |
| LL | fn from_residual(residual: R) -> Self; |
| | ^^^^^^^^^^^^^ ...because associated function `from_residual` has no `self` parameter |
| help: consider turning `from_residual` into a method by giving it a `&self` argument |
| | |
| LL | fn from_residual(&self, residual: R) -> Self; |
| | ++++++ |
| help: alternatively, consider constraining `from_residual` so it does not apply to trait objects |
| | |
| LL | fn from_residual(residual: R) -> Self where Self: Sized; |
| | +++++++++++++++++ |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0038`. |
