From cee3efbda82a22f9b73a131f39b8a9dfa265f1ca Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Mon, 3 Apr 2017 00:54:50 -0700
Subject: [PATCH] Relax lifetime requirement of the borrow_cow functions

---
 serde/src/de/private.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/serde/src/de/private.rs b/serde/src/de/private.rs
index a1f3fa70..8121ee15 100644
--- a/serde/src/de/private.rs
+++ b/serde/src/de/private.rs
@@ -61,7 +61,7 @@ pub fn missing_field<'de, V, E>(field: &'static str) -> Result<V, E>
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
-pub fn borrow_cow_str<'de, D>(deserializer: D) -> Result<Cow<'de, str>, D::Error>
+pub fn borrow_cow_str<'de: 'a, 'a, D>(deserializer: D) -> Result<Cow<'a, str>, D::Error>
     where D: Deserializer<'de>
 {
     struct CowStrVisitor;
@@ -123,7 +123,7 @@ pub fn borrow_cow_str<'de, D>(deserializer: D) -> Result<Cow<'de, str>, D::Error
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
-pub fn borrow_cow_bytes<'de, D>(deserializer: D) -> Result<Cow<'de, [u8]>, D::Error>
+pub fn borrow_cow_bytes<'de: 'a, 'a, D>(deserializer: D) -> Result<Cow<'a, [u8]>, D::Error>
     where D: Deserializer<'de>
 {
     struct CowBytesVisitor;