From ad7fd6265e62b2170612544caea3b8454ebb3fed Mon Sep 17 00:00:00 2001
From: Jon Gjengset <jon@thesquareplanet.com>
Date: Sat, 30 May 2020 15:20:09 -0400
Subject: [PATCH] Doctests need feature

---
 src/libcore/time.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libcore/time.rs b/src/libcore/time.rs
index cf88ff2e10f..d94f2378058 100644
--- a/src/libcore/time.rs
+++ b/src/libcore/time.rs
@@ -228,6 +228,7 @@ pub const fn from_nanos(nanos: u64) -> Duration {
     /// # Examples
     ///
     /// ```
+    /// #![feature(duration_zero)]
     /// use std::time::Duration;
     ///
     /// let duration = Duration::zero();
@@ -247,6 +248,7 @@ pub const fn zero() -> Duration {
     /// # Examples
     ///
     /// ```
+    /// #![feature(duration_zero)]
     /// use std::time::Duration;
     ///
     /// assert!(Duration::zero().is_zero());