diff --git a/serde/Cargo.toml b/serde/Cargo.toml
index 221fd016..81b5dd60 100644
--- a/serde/Cargo.toml
+++ b/serde/Cargo.toml
@@ -1,6 +1,12 @@
 [package]
 name = "serde"
+<<<<<<< HEAD
 version = "0.9.13" # remember to update html_root_url
+||||||| merged common ancestors
+version = "0.9.13"
+=======
+version = "0.9.14"
+>>>>>>> origin/master
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "A generic serialization/deserialization framework"
diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
index d7e6b7f8..4e8c7f0f 100644
--- a/serde/src/de/impls.rs
+++ b/serde/src/de/impls.rs
@@ -12,7 +12,82 @@ use de::{Deserialize, Deserializer, EnumAccess, Error, SeqAccess, Unexpected, Va
          Visitor};
 
 #[cfg(any(feature = "std", feature = "collections"))]
+<<<<<<< HEAD
 use de::MapAccess;
+||||||| merged common ancestors
+use core::cmp;
+use core::fmt;
+#[cfg(feature = "std")]
+use core::hash::{Hash, BuildHasher};
+use core::marker::PhantomData;
+#[cfg(feature = "std")]
+use std::net;
+#[cfg(feature = "std")]
+use std::path;
+use core::str;
+#[cfg(feature = "std")]
+use std::ffi::{CString, OsString};
+#[cfg(all(feature = "std", feature="unstable"))]
+use std::ffi::CStr;
+
+#[cfg(feature = "std")]
+use std::rc::Rc;
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::rc::Rc;
+
+#[cfg(feature = "std")]
+use std::sync::Arc;
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::arc::Arc;
+
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::boxed::Box;
+
+#[cfg(feature = "std")]
+use std::time::Duration;
+
+#[cfg(feature = "std")]
+use std;
+=======
+use core::cmp;
+use core::fmt;
+#[cfg(feature = "std")]
+use core::hash::{Hash, BuildHasher};
+use core::marker::PhantomData;
+#[cfg(feature = "std")]
+use std::net;
+#[cfg(feature = "std")]
+use std::path;
+use core::str;
+#[cfg(feature = "std")]
+use std::ffi::{CString, OsString};
+#[cfg(all(feature = "std", feature="unstable"))]
+use std::ffi::CStr;
+
+#[cfg(feature = "std")]
+use std::rc::Rc;
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::rc::Rc;
+
+#[cfg(feature = "std")]
+use std::sync::Arc;
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::arc::Arc;
+
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::boxed::Box;
+
+use core::cell::{Cell, RefCell};
+
+#[cfg(feature = "std")]
+use std::sync::{Mutex, RwLock};
+
+#[cfg(feature = "std")]
+use std::time::Duration;
+
+#[cfg(feature = "std")]
+use std;
+>>>>>>> origin/master
 
 use de::from_primitive::FromPrimitive;
 
@@ -1135,7 +1210,51 @@ where
     }
 }
 
+<<<<<<< HEAD
 ////////////////////////////////////////////////////////////////////////////////
+||||||| merged common ancestors
+///////////////////////////////////////////////////////////////////////////////
+=======
+impl<T: Deserialize + Copy> Deserialize for Cell<T> {
+    fn deserialize<D>(deserializer: D) -> Result<Cell<T>, D::Error>
+        where D: Deserializer
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(Cell::new(val))
+    }
+}
+
+impl<T: Deserialize> Deserialize for RefCell<T> {
+    fn deserialize<D>(deserializer: D) -> Result<RefCell<T>, D::Error>
+        where D: Deserializer
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(RefCell::new(val))
+    }
+}
+
+#[cfg(feature = "std")]
+impl<T: Deserialize> Deserialize for Mutex<T> {
+    fn deserialize<D>(deserializer: D) -> Result<Mutex<T>, D::Error>
+        where D: Deserializer
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(Mutex::new(val))
+    }
+}
+
+#[cfg(feature = "std")]
+impl<T: Deserialize> Deserialize for RwLock<T> {
+    fn deserialize<D>(deserializer: D) -> Result<RwLock<T>, D::Error>
+        where D: Deserializer
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(RwLock::new(val))
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+>>>>>>> origin/master
 
 // This is a cleaned-up version of the impl generated by:
 //
diff --git a/serde/src/de/mod.rs b/serde/src/de/mod.rs
index 3c9afa6f..dd5f09da 100644
--- a/serde/src/de/mod.rs
+++ b/serde/src/de/mod.rs
@@ -71,6 +71,10 @@
 //!    - Rc\<T\>
 //!    - Arc\<T\>
 //!    - Cow\<'a, T\>
+//!    - Cell\<T\>
+//!    - RefCell\<T\>
+//!    - Mutex\<T\>
+//!    - RwLock\<T\>
 //!  - **Collection types**:
 //!    - BTreeMap\<K, V\>
 //!    - BTreeSet\<T\>
diff --git a/serde/src/ser/impls.rs b/serde/src/ser/impls.rs
index dad456f1..10415680 100644
--- a/serde/src/ser/impls.rs
+++ b/serde/src/ser/impls.rs
@@ -13,7 +13,18 @@ use ser::{Serialize, SerializeTuple, Serializer};
 #[cfg(feature = "std")]
 use ser::Error;
 
+<<<<<<< HEAD
 ////////////////////////////////////////////////////////////////////////////////
+||||||| merged common ancestors
+use core::marker::PhantomData;
+=======
+use core::cell::{Cell, RefCell};
+
+#[cfg(feature = "std")]
+use std::sync::{Mutex, RwLock};
+
+use core::marker::PhantomData;
+>>>>>>> origin/master
 
 macro_rules! primitive_impl {
     ($ty:ident, $method:ident $($cast:tt)*) => {
@@ -349,7 +360,65 @@ deref_impl!(<'a, T: ?Sized> Serialize for Cow<'a, T> where T: Serialize + ToOwne
 #[cfg(feature = "unstable")]
 deref_impl!(<T> Serialize for NonZero<T> where T: Serialize + Zeroable);
 
+<<<<<<< HEAD
 ////////////////////////////////////////////////////////////////////////////////
+||||||| merged common ancestors
+///////////////////////////////////////////////////////////////////////////////
+=======
+impl<T> Serialize for Cell<T>
+    where T: Serialize + Copy
+{
+    #[inline]
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        self.get().serialize(serializer)
+    }
+}
+
+impl<T> Serialize for RefCell<T>
+    where T: Serialize
+{
+    #[inline]
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        self.borrow().serialize(serializer)
+    }
+}
+
+#[cfg(feature = "std")]
+impl<T> Serialize for Mutex<T>
+    where T: Serialize
+{
+    #[inline]
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        match self.lock() {
+            Ok(locked) => locked.serialize(serializer),
+            Err(_) => Err(S::Error::custom("lock poison error while serializing")),
+        }
+    }
+}
+
+#[cfg(feature = "std")]
+impl<T> Serialize for RwLock<T>
+    where T: Serialize
+{
+    #[inline]
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        match self.read() {
+            Ok(locked) => locked.serialize(serializer),
+            Err(_) => Err(S::Error::custom("lock poison error while serializing")),
+        }
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+>>>>>>> origin/master
 
 impl<T, E> Serialize for Result<T, E>
 where
diff --git a/serde/src/ser/mod.rs b/serde/src/ser/mod.rs
index 67b60fcc..565236ef 100644
--- a/serde/src/ser/mod.rs
+++ b/serde/src/ser/mod.rs
@@ -68,6 +68,10 @@
 //!    - Rc\<T\>
 //!    - Arc\<T\>
 //!    - Cow\<'a, T\>
+//!    - Cell\<T\>
+//!    - RefCell\<T\>
+//!    - Mutex\<T\>
+//!    - RwLock\<T\>
 //!  - **Collection types**:
 //!    - BTreeMap\<K, V\>
 //!    - BTreeSet\<T\>
diff --git a/serde_derive/Cargo.toml b/serde_derive/Cargo.toml
index 9f8d99d2..086fbce8 100644
--- a/serde_derive/Cargo.toml
+++ b/serde_derive/Cargo.toml
@@ -1,6 +1,12 @@
 [package]
 name = "serde_derive"
+<<<<<<< HEAD
 version = "0.9.13" # remember to update html_root_url
+||||||| merged common ancestors
+version = "0.9.13"
+=======
+version = "0.9.14"
+>>>>>>> origin/master
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
diff --git a/serde_test/Cargo.toml b/serde_test/Cargo.toml
index c7600ead..4feeca64 100644
--- a/serde_test/Cargo.toml
+++ b/serde_test/Cargo.toml
@@ -1,6 +1,12 @@
 [package]
 name = "serde_test"
+<<<<<<< HEAD
 version = "0.9.13" # remember to update html_root_url
+||||||| merged common ancestors
+version = "0.9.13"
+=======
+version = "0.9.14"
+>>>>>>> origin/master
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Token De/Serializer for testing De/Serialize implementations"