error[E0382]: borrow of moved value: `x` --> $DIR/liveness-use-after-move.rs:6:20 | LL | let x: Box<_> = 5.into(); | - move occurs because `x` has type `Box`, which does not implement the `Copy` trait LL | let y = x; | - value moved here LL | LL | println!("{}", *x); | ^^ value borrowed here after move | = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider cloning the value if the performance cost is acceptable | LL | let y = x.clone(); | ++++++++ error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.