error[E0382]: use of partially moved value --> $DIR/copy-and-move-mixed.rs:12:9 | LL | let a @ NC(b, c @ NC(d, e)) = NC(C, NC(C, C)); | ^^^^^^^^^^------------^ | | | | | value partially moved here | value used here after partial move | = note: partial move occurs because value has type `NC`, which does not implement the `Copy` trait error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.