tests/ui/attributes/doc-test-literal.stderr

error: `#![doc(test(...)]` does not take a literal
  --> $DIR/doc-test-literal.rs:1:13
   |
LL | #![doc(test(""))]
   |             ^^
   |
   = note: `#[deny(invalid_doc_attributes)]` on by default

error: aborting due to 1 previous error