refactor(kernel): ignore the clippy::needless_range_loop lint

Author: yvt

src/r3_kernel/src/lib.rs

@@ -23,6 +23,7 @@
 #![feature(const_ptr_read)]
 #![feature(const_convert)]
 #![feature(const_option)]
+#![feature(lint_reasons)]
 #![feature(const_deref)]
 #![feature(const_heap)]
 #![feature(const_iter)]

src/r3_kernel/src/utils/ctz.rs

@@ -211,6 +211,9 @@ fn ctz_array_lut<const LEN: usize>(x: usize) -> u32 {
             let mut array = [0u8; LEN];
             // `[T]::iter_mut` is unusable in `const fn` [ref:const_slice_iter]
             // `core::array::from_fn` is not `const fn` [ref:const_array_from_fn]
+            // FIXME: `needless_range_loop` false positive
+            // <https://github.com/rust-lang/rust-clippy/issues/10524>
+            #[expect(clippy::needless_range_loop)]
             for i in 0..array.len() {
                 array[i] = i.trailing_zeros() as u8;
             }