error[E0308]: mismatched types --> $DIR/no-implicit-dyn-star.rs:6:48 | LL | dyn_star_foreign::require_dyn_star_display(1usize); | ------------------------------------------ ^^^^^^ expected `dyn Display`, found `usize` | | | arguments to this function are incorrect | = note: expected trait object `(dyn* std::fmt::Display + 'static)` found type `usize` note: function defined here --> $DIR/auxiliary/dyn-star-foreign.rs:6:8 | LL | pub fn require_dyn_star_display(_: dyn* Display) {} | ^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0308`.