error[E0308]: mismatched types --> $DIR/variance-covariant-arg-trait-match.rs:24:5 | LL | impls_get::() //~ ERROR mismatched types | ^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch | = note: expected type `Get<&'min i32>` found type `Get<&'max i32>` note: the lifetime 'min as defined on the function body at 20:21... --> $DIR/variance-covariant-arg-trait-match.rs:20:21 | LL | fn get_min_from_max<'min, 'max, G>() | ^^^^ note: ...does not necessarily outlive the lifetime 'max as defined on the function body at 20:27 --> $DIR/variance-covariant-arg-trait-match.rs:20:27 | LL | fn get_min_from_max<'min, 'max, G>() | ^^^^ error[E0308]: mismatched types --> $DIR/variance-covariant-arg-trait-match.rs:30:5 | LL | impls_get::() //~ ERROR mismatched types | ^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch | = note: expected type `Get<&'max i32>` found type `Get<&'min i32>` note: the lifetime 'min as defined on the function body at 27:21... --> $DIR/variance-covariant-arg-trait-match.rs:27:21 | LL | fn get_max_from_min<'min, 'max, G>() | ^^^^ note: ...does not necessarily outlive the lifetime 'max as defined on the function body at 27:27 --> $DIR/variance-covariant-arg-trait-match.rs:27:27 | LL | fn get_max_from_min<'min, 'max, G>() | ^^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0308`.