Align with usage in rust-libp2p

Cargo.toml

@@ -31,3 +31,10 @@ bincode = "1"
 quickcheck = { version = "1.0.3", default-features = false }
 rand = "0.8.4"
 serde_json = "1.0"
+
+# Passing arguments to the docsrs builder in order to properly document cfg's.
+# More information: https://docs.rs/about/builds#cross-compiling
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+rustc-args = ["--cfg", "docsrs"]

src/lib.rs

@@ -1,5 +1,5 @@
 //! Implementation of [multiaddr](https://github.com/multiformats/multiaddr) in Rust.
-#![cfg_attr(doc, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 
 pub use multihash;