error[E0382]: use of moved value: `b` --> $DIR/issue-46099-move-in-macro.rs:14:12 | LL | let b = Box::new(true); | - move occurs because `b` has type `Box`, which does not implement the `Copy` trait LL | test!({b}); | ^ value used here after move | help: consider cloning the value if the performance cost is acceptable | LL | test!({b.clone()}); | ++++++++ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0382`.