error[E0381]: used binding `origin` isn't initialized --> $DIR/borrowck-init-in-fru.rs:9:14 | LL | let mut origin: Point; | ---------- binding declared here but left uninitialized LL | origin = Point { x: 10, ..origin }; | ^^^^^^^^^^^^^^^^^^^^^^^^^ `origin.y` used here but it isn't initialized | help: consider assigning a value | LL | let mut origin: Point = todo!(); | +++++++++ error: aborting due to previous error For more information about this error, try `rustc --explain E0381`.