Fix warning about stable debugger_visualizer

Cargo.toml

@@ -17,8 +17,7 @@ default = ["std"]
 std = ["alloc"]
 alloc = []
 
-# UNSTABLE FEATURES (requires Rust nightly)
-# Enable to use the #[debugger_visualizer] attribute.
+# Enable to use the #[debugger_visualizer] attribute. Requires Rust 1.71+
 debugger_visualizer = ["alloc"]
 
 [dev-dependencies]

README.md

@@ -26,6 +26,9 @@ this crate.
 - **`std`** - Enabled by default. Enable features that depend on the Rust `std` library, including
   everything in the `alloc` feature.
 
+- **`debugger_visualizer`** Add debugger visualizer data for crate types. _Requires Rust 1.71 or
+  newer_
+
 ## License
 
 This library is distributed under the terms of either of:

src/lib.rs

@@ -220,7 +220,7 @@
     trivial_numeric_casts,
     future_incompatible
 )]
-#![allow(renamed_and_removed_lints)] // Until min version gets bumped to after rename
+#![allow(renamed_and_removed_lints, stable_features)] // Until min version gets bumped
 #![cfg_attr(not(feature = "std"), no_std)]
 #![doc(html_root_url = "https://docs.rs/widestring/1.0.2")]
 #![doc(test(attr(deny(warnings), allow(unused))))]