error: lifetime may not live long enough --> $DIR/variance-use-contravariant-struct-1.rs:10:5 | LL | fn foo<'min,'max>(v: SomeStruct<&'max ()>) | ---- ---- lifetime `'max` defined here | | | lifetime `'min` defined here ... LL | v | ^ function was supposed to return data with lifetime `'max` but it is returning data with lifetime `'min` | = help: consider adding the following bound: `'min: 'max` error: aborting due to 1 previous error