error[E0621]: explicit lifetime required in the type of `ss` --> $DIR/object-lifetime-default-from-box-error.rs:18:5 | LL | fn load(ss: &mut SomeStruct) -> Box { | --------------- help: add explicit lifetime `'static` to the type of `ss`: `&mut SomeStruct<'static>` ... LL | ss.r | ^^^^ lifetime `'static` required error[E0621]: explicit lifetime required in the type of `ss` --> $DIR/object-lifetime-default-from-box-error.rs:31:12 | LL | fn store1<'b>(ss: &mut SomeStruct, b: Box) { | --------------- help: add explicit lifetime `'b` to the type of `ss`: `&mut SomeStruct<'b>` ... LL | ss.r = b; | ^ lifetime `'b` required error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0621`.