From 1745a575a5d319c13e355f458e11ab2898c23268 Mon Sep 17 00:00:00 2001
From: Nikolay Kim <fafhrd91@gmail.com>
Date: Thu, 27 Sep 2018 21:45:40 -0700
Subject: [PATCH] add constraints

---
 src/ssl/openssl.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ssl/openssl.rs b/src/ssl/openssl.rs
index 26a70011..52c61450 100644
--- a/src/ssl/openssl.rs
+++ b/src/ssl/openssl.rs
@@ -18,7 +18,7 @@ pub struct OpensslAcceptor<T> {
     io: PhantomData<T>,
 }
 
-impl<T> OpensslAcceptor<T> {
+impl<T: AsyncRead + AsyncWrite> OpensslAcceptor<T> {
     /// Create default `OpensslAcceptor`
     pub fn new(acceptor: SslAcceptor) -> Self {
         OpensslAcceptor {