fix

Author: TheIronBorn

src/distributions/uniform.rs

@@ -963,7 +963,7 @@ mod tests {
     fn test_integers() {
         use core::{i8, i16, i32, i64, isize};
         use core::{u8, u16, u32, u64, usize};
-        #[cfg(feature = "i128_support")]
+        #[cfg(rust_1_26)]
         use core::{i128, u128};
 
         let mut rng = ::test::rng(251);