error[E0599]: no method named `owned` found for reference `&dyn Foo` in the current scope --> $DIR/object-pointer-types.rs:11:7 | LL | fn owned(self: Box); | --------- the method might not be found because of this arbitrary self type ... LL | x.owned(); | ^^^^^ | help: there is a method `to_owned` with a similar name | LL | x.to_owned(); | ~~~~~~~~ error[E0599]: no method named `owned` found for mutable reference `&mut dyn Foo` in the current scope --> $DIR/object-pointer-types.rs:17:7 | LL | fn owned(self: Box); | --------- the method might not be found because of this arbitrary self type ... LL | x.owned(); | ^^^^^ method not found in `&mut dyn Foo` error[E0599]: no method named `managed` found for struct `Box<(dyn Foo + 'static)>` in the current scope --> $DIR/object-pointer-types.rs:23:7 | LL | x.managed(); | ^^^^^^^ method not found in `Box` error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0599`.