--- /dev/null
+error: `#[doc(keyword = "...")]` can only be used on empty modules
+ --> $DIR/doc_keyword.rs:6:7
+ |
+LL | #[doc(keyword = "hell")]
+ | ^^^^^^^^^^^^^^^^
+
+error: `#[doc(keyword = "...")]` can only be used on modules
+ --> $DIR/doc_keyword.rs:11:7
+ |
+LL | #[doc(keyword = "hall")]
+ | ^^^^^^^^^^^^^^^^
+
+error: `#![doc(keyword = "...")]` isn't allowed as a crate-level attribute
+ --> $DIR/doc_keyword.rs:4:8
+ |
+LL | #![doc(keyword = "hello")]
+ | ^^^^^^^^^^^^^^^^^
+
+error: aborting due to 3 previous errors
+