error[E0560]: struct `Foo` has no field named `z`
  --> $DIR/struct-fields-shorthand.rs:9:15
   |
LL |         x, y, z
   |               ^ `Foo` does not have this field
   |
   = note: all struct fields are already assigned

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0560`.