error[E0382]: borrow of moved value: `n` --> $DIR/use-after-move-implicity-coerced-object.rs:28:13 | LL | let n: Box<_> = Number { n: 42 }.into(); | - move occurs because `n` has type `Box`, which does not implement the `Copy` trait LL | let mut l: Box<_> = List { list: Vec::new() }.into(); LL | l.push(n); | - value moved here LL | LL | let x = n.to_string(); | ^^^^^^^^^^^^^ value borrowed here after move | note: consider changing this parameter type in method `push` to borrow instead if owning the value isn't necessary --> $DIR/use-after-move-implicity-coerced-object.rs:17:27 | LL | fn push(&mut self, n: Box) { | ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ this parameter takes ownership of the value | | | in this method error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.