error[E0277]: `()` doesn't implement `std::fmt::Display` --> $DIR/point-at-type-param-in-path-expr.rs:4:19 | LL | let x = foo::<()>; | ^^ the trait `std::fmt::Display` is not implemented for `()` | note: required by a bound in `foo` --> $DIR/point-at-type-param-in-path-expr.rs:1:11 | LL | fn foo() {} | ^^^^^^^^^^^^^^^^^ required by this bound in `foo` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0277`.