error[E0277]: `dyn* PointerLike` needs to have the same ABI as a pointer --> $DIR/dyn-pointer-like.rs:14:9 | LL | foo(x); | --- ^ the trait `PointerLike` is not implemented for `dyn* PointerLike` | | | required by a bound introduced by this call | = note: the trait bound `dyn* PointerLike: PointerLike` is not satisfied note: required by a bound in `foo` --> $DIR/dyn-pointer-like.rs:21:11 | LL | fn foo(x: T) { | ^^^^^^^^^^^ required by this bound in `foo` help: consider borrowing here | LL | foo(&x); | + LL | foo(&mut x); | ++++ error[E0277]: `dyn PointerLike` needs to have the same ABI as a pointer --> $DIR/dyn-pointer-like.rs:18:9 | LL | foo(x); | --- ^ `dyn PointerLike` needs to be a pointer-like type | | | required by a bound introduced by this call | = help: the trait `PointerLike` is not implemented for `dyn PointerLike` note: required by a bound in `foo` --> $DIR/dyn-pointer-like.rs:21:11 | LL | fn foo(x: T) { | ^^^^^^^^^^^ required by this bound in `foo` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0277`.