1 error[E0038]: the trait `Tr` cannot be made into an object
2 --> $DIR/safety.rs:15:22
4 LL | let _: &dyn Tr = &St;
5 | ^^^ `Tr` cannot be made into an object
7 note: for a trait to be "object safe" 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>
11 | -- this trait cannot be made into an object...
13 | ^^^ ...because associated function `foo` has no `self` parameter
14 = note: required because of the requirements on the impl of `CoerceUnsized<&dyn Tr>` for `&St`
15 = note: required by cast to type `&dyn Tr`
16 help: consider turning `foo` into a method by giving it a `&self` argument
20 help: alternatively, consider constraining `foo` so it does not apply to trait objects
22 LL | fn foo() where Self: Sized;
25 error[E0038]: the trait `Tr` cannot be made into an object
26 --> $DIR/safety.rs:15:12
28 LL | let _: &dyn Tr = &St;
29 | ^^^^^^^ `Tr` cannot be made into an object
31 note: for a trait to be "object safe" 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>
32 --> $DIR/safety.rs:4:8
35 | -- this trait cannot be made into an object...
37 | ^^^ ...because associated function `foo` has no `self` parameter
38 help: consider turning `foo` into a method by giving it a `&self` argument
42 help: alternatively, consider constraining `foo` so it does not apply to trait objects
44 LL | fn foo() where Self: Sized;
47 error: aborting due to 2 previous errors
49 For more information about this error, try `rustc --explain E0038`.