error[E0507]: cannot move out of `x` as enum variant `Some` which is behind a shared reference --> $DIR/issue-99470-move-out-of-some.rs:4:11 | LL | match x { | ^ LL | LL | &Some(_y) => (), | -- | | | data moved here | move occurs because `_y` has type `Box`, which does not implement the `Copy` trait | help: consider removing the borrow | LL - &Some(_y) => (), LL + Some(_y) => (), | error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0507`.