diff --git a/.travis.yml b/.travis.yml
index a69ce1881..fcbddda00 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,6 @@ cache:
 
 matrix:
   include:
-    - rust: 1.21.0
     - rust: stable
     - rust: beta
     - rust: nightly
diff --git a/CHANGES.md b/CHANGES.md
index 6c3307401..9c11cb609 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # Changes
 
+## 0.5.8 (2018-05-11)
+
+* Fix segfault in ServerSettings::get_response_builder()
+
+
 ## 0.5.7 (2018-05-09)
 
 * Fix http/2 payload streaming #215
diff --git a/Cargo.toml b/Cargo.toml
index a04dabeb5..3dbe13a02 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "0.5.7"
+version = "0.5.8"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix web is a simple, pragmatic and extremely fast web framework for Rust."
 readme = "README.md"
diff --git a/src/server/settings.rs b/src/server/settings.rs
index 1b57db1a2..f75033c1b 100644
--- a/src/server/settings.rs
+++ b/src/server/settings.rs
@@ -8,15 +8,14 @@ use std::sync::Arc;
 use std::{fmt, mem, net};
 use time;
 
-use super::KeepAlive;
 use super::channel::Node;
 use super::helpers;
 use super::shared::{SharedBytes, SharedBytesPool};
+use super::KeepAlive;
 use body::Body;
 use httpresponse::{HttpResponse, HttpResponseBuilder, HttpResponsePool};
 
 /// Various server settings
-#[derive(Clone)]
 pub struct ServerSettings {
     addr: Option<net::SocketAddr>,
     secure: bool,
@@ -28,6 +27,18 @@ pub struct ServerSettings {
 unsafe impl Sync for ServerSettings {}
 unsafe impl Send for ServerSettings {}
 
+impl Clone for ServerSettings {
+    fn clone(&self) -> Self {
+        ServerSettings {
+            addr: self.addr,
+            secure: self.secure,
+            host: self.host.clone(),
+            cpu_pool: self.cpu_pool.clone(),
+            responses: HttpResponsePool::pool(),
+        }
+    }
+}
+
 struct InnerCpuPool {
     cpu_pool: UnsafeCell<Option<CpuPool>>,
 }
@@ -72,7 +83,7 @@ impl Default for ServerSettings {
 impl ServerSettings {
     /// Crate server settings instance
     pub(crate) fn new(
-        addr: Option<net::SocketAddr>, host: &Option<String>, secure: bool
+        addr: Option<net::SocketAddr>, host: &Option<String>, secure: bool,
     ) -> ServerSettings {
         let host = if let Some(ref host) = *host {
             host.clone()
@@ -119,7 +130,7 @@ impl ServerSettings {
 
     #[inline]
     pub(crate) fn get_response_builder(
-        &self, status: StatusCode
+        &self, status: StatusCode,
     ) -> HttpResponseBuilder {
         HttpResponsePool::get_builder(&self.responses, status)
     }