no_std_test: Allow internal_features

tcharding · tcharding · commit a1005a694dec · 2023-08-08T12:30:48.000+10:00
Shoosh clippy, allow `internal_features`.
diff --git a/no_std_test/src/main.rs b/no_std_test/src/main.rs
@@ -27,6 +27,7 @@
 //!     * Requires linking with `libc` for calling `printf`.
 //!
 
+#![allow(internal_features)]    // for lang_items
 #![feature(lang_items)]
 #![feature(start)]
 #![feature(core_intrinsics)]
