Use CURRENT_RUSTC_VERSION

Author: newpavlov

core/src/time.rs

@@ -1068,7 +1068,7 @@ impl Duration {
     /// let dur2 = Duration::new(5, 400_000_000);
     /// assert_eq!(dur1.div_duration_f64(dur2), 0.5);
     /// ```
-    #[stable(feature = "div_duration", since = "1.80.0")]
+    #[stable(feature = "div_duration", since = "CURRENT_RUSTC_VERSION")]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[inline]
@@ -1087,7 +1087,7 @@ impl Duration {
     /// let dur2 = Duration::new(5, 400_000_000);
     /// assert_eq!(dur1.div_duration_f32(dur2), 0.5);
     /// ```
-    #[stable(feature = "div_duration", since = "1.80.0")]
+    #[stable(feature = "div_duration", since = "CURRENT_RUSTC_VERSION")]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[inline]