error[E0368]: binary assignment operation `+=` cannot be applied to type `LinkedList<_>` --> $DIR/E0067.rs:4:5 | LL | LinkedList::new() += 1; | -----------------^^^^^ | | | cannot use `+=` on type `LinkedList<_>` error[E0067]: invalid left-hand side of assignment --> $DIR/E0067.rs:4:23 | LL | LinkedList::new() += 1; | ----------------- ^^ | | | cannot assign to this expression error: aborting due to 2 previous errors Some errors have detailed explanations: E0067, E0368. For more information about an error, try `rustc --explain E0067`.