Privatize docsrs cfg flag

Author: djc

Cargo.toml

@@ -26,9 +26,12 @@ crabgrind = "=0.1.9" # compatible with valgrind package on GHA ubuntu-latest
 [target.'cfg(all(target_family = "wasm", target_os = "unknown"))'.dependencies]
 web-time = { version = "1", optional = true }
 
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ["cfg(rustls_pki_types_docsrs)"] }
+
 [package.metadata.docs.rs]
 all-features = true
-rustdoc-args = ["--cfg", "docsrs"]
+rustdoc-args = ["--cfg", "rustls_pki_types_docsrs"]
 
 [package.metadata.cargo_check_external_types]
 allowed_external_types = ["zeroize::Zeroize"]

src/lib.rs

@@ -63,7 +63,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 #![warn(unreachable_pub, clippy::use_self)]
 #![deny(missing_docs)]
-#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+#![cfg_attr(rustls_pki_types_docsrs, feature(doc_cfg, doc_auto_cfg))]
 
 #[cfg(feature = "alloc")]
 extern crate alloc;