error[E0310]: the parameter type `impl Debug` may not live long enough --> $DIR/suggest-impl-trait-lifetime.rs:7:5 | LL | bar(d); | ^^^^^^ | | | the parameter type `impl Debug` must be valid for the static lifetime... | ...so that the type `impl Debug` will meet its required lifetime bounds | help: consider adding an explicit lifetime bound | LL | fn foo(d: impl Debug + 'static) { | +++++++++ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0310`.