message: Update the reference link in a message
  Follow up
diff: @@ -91,7 +91,7 @@ impl Platform {
  This key is not supported for selecting dependencies \
  and will not work as expected. \
  Use the [features] section instead: \
  - https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section"
  + https://doc.rust-lang.org/cargo/reference/features.html"
  )),
  _ => (),
  },
  