error[E0405]: cannot find trait `Debug` in this scope --> $DIR/universal_wrong_bounds.rs:9:24 | LL | fn wants_debug(g: impl Debug) { } | ^^^^^ not found in this scope help: possible candidate is found in another module, you can import it into scope | LL | use std::fmt::Debug; | error[E0405]: cannot find trait `Debug` in this scope --> $DIR/universal_wrong_bounds.rs:10:26 | LL | fn wants_display(g: impl Debug) { } | ^^^^^ not found in this scope help: possible candidate is found in another module, you can import it into scope | LL | use std::fmt::Debug; | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0405`.