--- a/src/sets/cube.rs	Fri Dec 06 15:30:23 2024 -0500
+++ b/src/sets/cube.rs	Fri Dec 06 16:14:41 2024 -0500
@@ -333,7 +333,9 @@
 
 impl_common!(u8 u16 u32 u64 u128 usize
              i8 i16 i32 i64 i128 isize, min, max);
+
 // Any NaN yields NaN
+#[cfg(feature = "nightly")]
 impl_common!(f32 f64, minimum, maximum);
 
 impl<U : Num, const N : usize> std::ops::Index<usize> for Cube<U, N> {