message: Remove a nightly check from doc tests
diff: @@ -1237,10 +1237,6 @@ fn doc_target_edition() {
  // caused `cargo doc` to fail.
  #[test]
  fn issue_5345() {
  - if !is_nightly() {
  - // This can be removed once 1.29 is stable (rustdoc --cap-lints).
  - return;
  - }
  let foo = project()
  .file(
  "Cargo.toml",
  