diff --git a/serde/src/bytes.rs b/serde/src/bytes.rs
index f83ab8dd..67f8ce85 100644
--- a/serde/src/bytes.rs
+++ b/serde/src/bytes.rs
@@ -41,7 +41,7 @@ impl<'a> From<&'a [u8]> for Bytes<'a> {
 impl<'a> From<&'a Vec<u8>> for Bytes<'a> {
     fn from(bytes: &'a Vec<u8>) -> Self {
         Bytes {
-            bytes: &bytes,
+            bytes: bytes,
         }
     }
 }
@@ -165,7 +165,7 @@ mod bytebuf {
         fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
             where S: ser::Serializer
         {
-            serializer.serialize_bytes(&self)
+            serializer.serialize_bytes(self)
         }
     }
 
diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
index df9c75e4..ed727aa2 100644
--- a/serde/src/de/impls.rs
+++ b/serde/src/de/impls.rs
@@ -118,7 +118,7 @@ impl Visitor for BoolVisitor {
     fn visit_str<E>(&mut self, s: &str) -> Result<bool, E>
         where E: Error,
     {
-        match s.trim_matches(|c| ::utils::Pattern_White_Space(c)) {
+        match s.trim_matches(::utils::Pattern_White_Space) {
             "true" => Ok(true),
             "false" => Ok(false),
             _ => Err(Error::invalid_type(Type::Bool)),
diff --git a/serde_codegen/src/de.rs b/serde_codegen/src/de.rs
index 3de00dbe..78cc0c85 100644
--- a/serde_codegen/src/de.rs
+++ b/serde_codegen/src/de.rs
@@ -9,7 +9,6 @@ use syntax::ast::{
 };
 use syntax::codemap::Span;
 use syntax::ext::base::{Annotatable, ExtCtxt};
-use syntax::ext::build::AstBuilder;
 use syntax::parse::token::InternedString;
 use syntax::ptr::P;
 
diff --git a/serde_tests/benches/bench_enum.rs b/serde_tests/benches/bench_enum.rs
index e5deaad7..8badbb49 100644
--- a/serde_tests/benches/bench_enum.rs
+++ b/serde_tests/benches/bench_enum.rs
@@ -1,9 +1,9 @@
 use test::Bencher;
 use std::error;
 use std::fmt;
-use rustc_serialize::{Decoder, Decodable};
+use rustc_serialize::Decodable;
 use serde;
-use serde::de::{Deserializer, Deserialize};
+use serde::de::Deserialize;
 
 //////////////////////////////////////////////////////////////////////////////
 
diff --git a/serde_tests/benches/bench_struct.rs b/serde_tests/benches/bench_struct.rs
index 402230d4..82b189e1 100644
--- a/serde_tests/benches/bench_struct.rs
+++ b/serde_tests/benches/bench_struct.rs
@@ -3,10 +3,10 @@ use test::Bencher;
 use std::fmt;
 use std::error;
 
-use rustc_serialize::{Decoder, Decodable};
+use rustc_serialize::Decodable;
 
 use serde;
-use serde::de::{Deserializer, Deserialize};
+use serde::de::Deserialize;
 
 //////////////////////////////////////////////////////////////////////////////
 
diff --git a/serde_tests/tests/test_de.rs b/serde_tests/tests/test_de.rs
index 27794aeb..932b4b10 100644
--- a/serde_tests/tests/test_de.rs
+++ b/serde_tests/tests/test_de.rs
@@ -2,9 +2,6 @@ use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::net;
 use std::path::PathBuf;
 
-extern crate serde;
-use self::serde::de::Deserializer;
-
 use token::{
     Error,
     Token,