error: Unknown attribute `does_not_exist` for trait `Clone`
--> $DIR/unknown-attribute.rs:8:22
|
8 | #[derivative(Clone = "does_not_exist")]
| ^^^^^^^^^^^^^^^^
error: Unknown attribute `does_not_exist` for trait `Clone`
--> $DIR/unknown-attribute.rs:12:20
|
12 | #[derivative(Clone(does_not_exist = "true"))]
| ^^^^^^^^^^^^^^