minor: fix rustdoc lint invocation (#448)

Author: patrickfreed

.evergreen/check-rustdoc.sh

@@ -3,4 +3,6 @@
 set -o errexit
 
 . ~/.cargo/env
-cargo +nightly rustdoc -p bson --all-features -- --cfg docsrs -D warnings
+cargo rustdoc -- -D warnings
+cargo rustdoc --no-default-features --features async-std-runtime -- -D warnings
+cargo rustdoc --no-default-features --features sync -- -D warnings

src/client/auth/mod.rs

@@ -82,7 +82,8 @@ pub enum AuthMechanism {
     ///
     /// Note: Only server versions 4.4+ support AWS authentication. Additionally, the driver only
     /// supports AWS authentication with the tokio runtime.
-    #[cfg(feature = "aws-auth")]
+    #[cfg(any(feature = "aws-auth", docsrs))]
+    #[cfg_attr(docsrs, doc(cfg(feature = "aws-auth")))]
     MongoDbAws,
 }
 

src/lib.rs

@@ -115,7 +115,7 @@
 //! # Ok(()) }
 //! ```
 //!
-//! A [`Collection`] can be parameterized with any type that implements the
+//! A [`Collection`](struct.Collection.html) can be parameterized with any type that implements the
 //! `Serialize` and `Deserialize` traits from the [`serde`](https://serde.rs/) crate,
 //! not just `Document`:
 //!
@@ -155,8 +155,8 @@
 //! ```
 //!
 //! ### Finding documents in a collection
-//! Results from queries are generally returned via [`Cursor`], a struct which streams the results
-//! back from the server as requested. The [`Cursor`] type implements the
+//! Results from queries are generally returned via [`Cursor`](struct.Cursor.html), a struct which streams
+//! the results back from the server as requested. The [`Cursor`](struct.Cursor.html) type implements the
 //! [`Stream`](https://docs.rs/futures/latest/futures/stream/trait.Stream.html) trait from
 //! the [`futures`](https://crates.io/crates/futures) crate, and in order to access its streaming
 //! functionality you need to import at least one of the