error: malformed `deprecated` attribute input --> $DIR/invalid-literal.rs:1:1 | LL | #[deprecated = b"test"] | ^^^^^^^^^^^^^^^^^^^^^^^ | help: the following are the possible correct uses | LL | #[deprecated = "reason"] | ~~~~~~~~~~~~~~~~~~~~~~~~ LL | #[deprecated(/*opt*/ since = "version", /*opt*/ note = "reason")] | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ LL | #[deprecated] | ~~~~~~~~~~~~~ error: aborting due to previous error