error[E0308]: mismatched types --> $DIR/variance-use-invariant-struct-1.rs:12:5 | LL | v | ^ lifetime mismatch | = note: expected type `SomeStruct<&'min ()>` found type `SomeStruct<&'max ()>` note: the lifetime `'min` as defined on the function body at 8:8... --> $DIR/variance-use-invariant-struct-1.rs:8:8 | LL | fn foo<'min,'max>(v: SomeStruct<&'max ()>) | ^^^^ note: ...does not necessarily outlive the lifetime `'max` as defined on the function body at 8:13 --> $DIR/variance-use-invariant-struct-1.rs:8:13 | LL | fn foo<'min,'max>(v: SomeStruct<&'max ()>) | ^^^^ error[E0308]: mismatched types --> $DIR/variance-use-invariant-struct-1.rs:19:5 | LL | v | ^ lifetime mismatch | = note: expected type `SomeStruct<&'max ()>` found type `SomeStruct<&'min ()>` note: the lifetime `'min` as defined on the function body at 15:8... --> $DIR/variance-use-invariant-struct-1.rs:15:8 | LL | fn bar<'min,'max>(v: SomeStruct<&'min ()>) | ^^^^ note: ...does not necessarily outlive the lifetime `'max` as defined on the function body at 15:13 --> $DIR/variance-use-invariant-struct-1.rs:15:13 | LL | fn bar<'min,'max>(v: SomeStruct<&'min ()>) | ^^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0308`.