diff --git a/src/application.rs b/src/application.rs
index 407268322..d8a6cbe7b 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -135,7 +135,7 @@ where
     /// instance for each thread, thus application state must be constructed
     /// multiple times. If you want to share state between different
     /// threads, a shared object should be used, e.g. `Arc`. Application
-    /// state does not need to be `Send` and `Sync`.
+    /// state does not need to be `Send` or `Sync`.
     pub fn with_state(state: S) -> App<S> {
         App {
             parts: Some(ApplicationParts {
diff --git a/src/client/writer.rs b/src/client/writer.rs
index 45abfb773..e74f22332 100644
--- a/src/client/writer.rs
+++ b/src/client/writer.rs
@@ -1,4 +1,7 @@
-#![cfg_attr(feature = "cargo-clippy", allow(redundant_field_names))]
+#![cfg_attr(
+    feature = "cargo-clippy",
+    allow(clippy::redundant_field_names)
+)]
 
 use std::cell::RefCell;
 use std::fmt::Write as FmtWrite;
diff --git a/src/extensions.rs b/src/extensions.rs
index 3e3f24a24..430b87bda 100644
--- a/src/extensions.rs
+++ b/src/extensions.rs
@@ -31,6 +31,7 @@ impl Hasher for IdHasher {
 
 type AnyMap = HashMap<TypeId, Box<Any>, BuildHasherDefault<IdHasher>>;
 
+#[derive(Default)]
 /// A type map of request extensions.
 pub struct Extensions {
     map: AnyMap,
diff --git a/src/handler.rs b/src/handler.rs
index 2b6cc6604..399fd6ba3 100644
--- a/src/handler.rs
+++ b/src/handler.rs
@@ -530,8 +530,7 @@ where
 /// }
 ///
 /// /// extract path info using serde
-/// fn index(data: (State<MyApp>, Path<Info>)) -> String {
-///     let (state, path) = data;
+/// fn index(state: State<MyApp>, path: Path<Info>)) -> String {
 ///     format!("{} {}!", state.msg, path.username)
 /// }
 ///
diff --git a/src/httpresponse.rs b/src/httpresponse.rs
index f02570188..59815c58c 100644
--- a/src/httpresponse.rs
+++ b/src/httpresponse.rs
@@ -694,7 +694,7 @@ impl HttpResponseBuilder {
 }
 
 #[inline]
-#[cfg_attr(feature = "cargo-clippy", allow(borrowed_box))]
+#[cfg_attr(feature = "cargo-clippy", allow(clippy::borrowed_box))]
 fn parts<'a>(
     parts: &'a mut Option<Box<InnerHttpResponse>>, err: &Option<HttpError>,
 ) -> Option<&'a mut Box<InnerHttpResponse>> {
diff --git a/src/info.rs b/src/info.rs
index aeffc5ba2..5a2f21805 100644
--- a/src/info.rs
+++ b/src/info.rs
@@ -16,7 +16,10 @@ pub struct ConnectionInfo {
 
 impl ConnectionInfo {
     /// Create *ConnectionInfo* instance for a request.
-    #[cfg_attr(feature = "cargo-clippy", allow(cyclomatic_complexity))]
+    #[cfg_attr(
+        feature = "cargo-clippy",
+        allow(clippy::cyclomatic_complexity)
+    )]
     pub fn update(&mut self, req: &Request) {
         let mut host = None;
         let mut scheme = None;
diff --git a/src/lib.rs b/src/lib.rs
index df3c3817e..1ed408099 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -80,6 +80,7 @@
 #![cfg_attr(actix_nightly, feature(
     specialization, // for impl ErrorResponse for std::error::Error
     extern_prelude,
+    tool_lints,
 ))]
 #![warn(missing_docs)]
 
diff --git a/src/middleware/defaultheaders.rs b/src/middleware/defaultheaders.rs
index a33fa6a33..d980a2503 100644
--- a/src/middleware/defaultheaders.rs
+++ b/src/middleware/defaultheaders.rs
@@ -48,7 +48,7 @@ impl DefaultHeaders {
 
     /// Set a header.
     #[inline]
-    #[cfg_attr(feature = "cargo-clippy", allow(match_wild_err_arm))]
+    #[cfg_attr(feature = "cargo-clippy", allow(clippy::match_wild_err_arm))]
     pub fn header<K, V>(mut self, key: K, value: V) -> Self
     where
         HeaderName: HttpTryFrom<K>,
diff --git a/src/route.rs b/src/route.rs
index e2635aa65..e4a7a9572 100644
--- a/src/route.rs
+++ b/src/route.rs
@@ -134,8 +134,7 @@ impl<S: 'static> Route<S> {
     /// }
     /// ```
     ///
-    /// It is possible to use tuples for specifing multiple extractors for one
-    /// handler function.
+    /// It is possible to use multiple extractors for one handler function.
     ///
     /// ```rust
     /// # extern crate bytes;
@@ -152,9 +151,9 @@ impl<S: 'static> Route<S> {
     ///
     /// /// extract path info using serde
     /// fn index(
-    ///     info: (Path<Info>, Query<HashMap<String, String>>, Json<Info>),
+    ///     path: Path<Info>, query: Query<HashMap<String, String>>, body: Json<Info>,
     /// ) -> Result<String> {
-    ///     Ok(format!("Welcome {}!", info.0.username))
+    ///     Ok(format!("Welcome {}!", path.username))
     /// }
     ///
     /// fn main() {
diff --git a/src/scope.rs b/src/scope.rs
index bd3daf163..43789d427 100644
--- a/src/scope.rs
+++ b/src/scope.rs
@@ -59,7 +59,10 @@ pub struct Scope<S> {
     middlewares: Rc<Vec<Box<Middleware<S>>>>,
 }
 
-#[cfg_attr(feature = "cargo-clippy", allow(new_without_default_derive))]
+#[cfg_attr(
+    feature = "cargo-clippy",
+    allow(clippy::new_without_default_derive)
+)]
 impl<S: 'static> Scope<S> {
     /// Create a new scope
     pub fn new(path: &str) -> Scope<S> {
diff --git a/src/server/h2writer.rs b/src/server/h2writer.rs
index 4bfc1b7c1..0893b5b62 100644
--- a/src/server/h2writer.rs
+++ b/src/server/h2writer.rs
@@ -1,4 +1,7 @@
-#![cfg_attr(feature = "cargo-clippy", allow(redundant_field_names))]
+#![cfg_attr(
+    feature = "cargo-clippy",
+    allow(clippy::redundant_field_names)
+)]
 
 use std::{cmp, io};
 
diff --git a/src/server/helpers.rs b/src/server/helpers.rs
index 9c0b7f40c..e4ccd8aef 100644
--- a/src/server/helpers.rs
+++ b/src/server/helpers.rs
@@ -78,7 +78,7 @@ pub fn write_content_length(mut n: usize, bytes: &mut BytesMut) {
         let d1 = n << 1;
         unsafe {
             ptr::copy_nonoverlapping(
-                DEC_DIGITS_LUT.as_ptr().offset(d1 as isize),
+                DEC_DIGITS_LUT.as_ptr().add(d1),
                 buf.as_mut_ptr().offset(18),
                 2,
             );
@@ -94,7 +94,7 @@ pub fn write_content_length(mut n: usize, bytes: &mut BytesMut) {
         n /= 100;
         unsafe {
             ptr::copy_nonoverlapping(
-                DEC_DIGITS_LUT.as_ptr().offset(d1 as isize),
+                DEC_DIGITS_LUT.as_ptr().add(d1),
                 buf.as_mut_ptr().offset(19),
                 2,
             )
diff --git a/src/server/http.rs b/src/server/http.rs
index 5e1d33512..5a7200868 100644
--- a/src/server/http.rs
+++ b/src/server/http.rs
@@ -329,7 +329,10 @@ where
 
     /// Start listening for incoming connections with supplied acceptor.
     #[doc(hidden)]
-    #[cfg_attr(feature = "cargo-clippy", allow(needless_pass_by_value))]
+    #[cfg_attr(
+        feature = "cargo-clippy",
+        allow(clippy::needless_pass_by_value)
+    )]
     pub fn bind_with<S, A>(mut self, addr: S, acceptor: A) -> io::Result<Self>
     where
         S: net::ToSocketAddrs,
diff --git a/src/server/output.rs b/src/server/output.rs
index 74b083388..46b03c9dc 100644
--- a/src/server/output.rs
+++ b/src/server/output.rs
@@ -151,10 +151,9 @@ impl Output {
         let version = resp.version().unwrap_or_else(|| req.version);
         let mut len = 0;
 
-        #[cfg_attr(feature = "cargo-clippy", allow(match_ref_pats))]
         let has_body = match resp.body() {
-            &Body::Empty => false,
-            &Body::Binary(ref bin) => {
+            Body::Empty => false,
+            Body::Binary(ref bin) => {
                 len = bin.len();
                 !(response_encoding == ContentEncoding::Auto && len < 96)
             }
@@ -190,16 +189,15 @@ impl Output {
         #[cfg(not(any(feature = "brotli", feature = "flate2")))]
         let mut encoding = ContentEncoding::Identity;
 
-        #[cfg_attr(feature = "cargo-clippy", allow(match_ref_pats))]
         let transfer = match resp.body() {
-            &Body::Empty => {
+            Body::Empty => {
                 if !info.head {
                     info.length = ResponseLength::Zero;
                 }
                 *self = Output::Empty(buf);
                 return;
             }
-            &Body::Binary(_) => {
+            Body::Binary(_) => {
                 #[cfg(any(feature = "brotli", feature = "flate2"))]
                 {
                     if !(encoding == ContentEncoding::Identity
@@ -244,7 +242,7 @@ impl Output {
                 }
                 return;
             }
-            &Body::Streaming(_) | &Body::Actor(_) => {
+            Body::Streaming(_) | Body::Actor(_) => {
                 if resp.upgrade() {
                     if version == Version::HTTP_2 {
                         error!("Connection upgrade is forbidden for HTTP/2");
@@ -441,7 +439,7 @@ impl ContentEncoder {
         }
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(inline_always))]
+    #[cfg_attr(feature = "cargo-clippy", allow(clippy::inline_always))]
     #[inline(always)]
     pub fn write_eof(&mut self) -> Result<bool, io::Error> {
         let encoder =
@@ -483,7 +481,7 @@ impl ContentEncoder {
         }
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(inline_always))]
+    #[cfg_attr(feature = "cargo-clippy", allow(clippy::inline_always))]
     #[inline(always)]
     pub fn write(&mut self, data: &[u8]) -> Result<(), io::Error> {
         match *self {
diff --git a/src/server/settings.rs b/src/server/settings.rs
index ac79e4a46..a50a07069 100644
--- a/src/server/settings.rs
+++ b/src/server/settings.rs
@@ -216,7 +216,7 @@ impl<H> WorkerSettings<H> {
 
     fn update_date(&self) {
         // Unsafe: WorkerSetting is !Sync and !Send
-        unsafe { (&mut *self.0.date.get()).0 = false };
+        unsafe { (*self.0.date.get()).0 = false };
     }
 }
 
diff --git a/src/with.rs b/src/with.rs
index 5e2c01414..c6d54dee8 100644
--- a/src/with.rs
+++ b/src/with.rs
@@ -12,7 +12,6 @@ trait FnWith<T, R>: 'static {
 }
 
 impl<T, R, F: Fn(T) -> R + 'static> FnWith<T, R> for F {
-    #[cfg_attr(feature = "cargo-clippy", allow(boxed_local))]
     fn call_with(self: &Self, arg: T) -> R {
         (*self)(arg)
     }
@@ -42,24 +41,6 @@ where
     fn create_with_config(self, T::Config) -> WithAsync<T, S, R, I, E>;
 }
 
-// impl<T1, T2, T3, S, F, R> WithFactory<(T1, T2, T3), S, R> for F
-// where F: Fn(T1, T2, T3) -> R + 'static,
-//       T1: FromRequest<S> + 'static,
-//       T2: FromRequest<S> + 'static,
-//       T3: FromRequest<S> + 'static,
-//       R: Responder + 'static,
-//       S: 'static,
-// {
-//     fn create(self) -> With<(T1, T2, T3), S, R> {
-//         With::new(move |(t1, t2, t3)| (self)(t1, t2, t3), (
-//             T1::Config::default(), T2::Config::default(), T3::Config::default()))
-//     }
-
-//     fn create_with_config(self, cfg: (T1::Config, T2::Config, T3::Config,)) -> With<(T1, T2, T3), S, R> {
-//         With::new(move |(t1, t2, t3)| (self)(t1, t2, t3), cfg)
-//     }
-// }
-
 #[doc(hidden)]
 pub struct With<T, S, R>
 where
diff --git a/src/ws/frame.rs b/src/ws/frame.rs
index 5e4fd8290..d5fa98272 100644
--- a/src/ws/frame.rs
+++ b/src/ws/frame.rs
@@ -46,7 +46,7 @@ impl Frame {
         Frame::message(payload, OpCode::Close, true, genmask)
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(type_complexity))]
+    #[cfg_attr(feature = "cargo-clippy", allow(clippy::type_complexity))]
     fn read_copy_md<S>(
         pl: &mut PayloadBuffer<S>, server: bool, max_size: usize,
     ) -> Poll<Option<(usize, bool, OpCode, usize, Option<u32>)>, ProtocolError>
diff --git a/src/ws/mask.rs b/src/ws/mask.rs
index e9bfb3d56..a88c21afb 100644
--- a/src/ws/mask.rs
+++ b/src/ws/mask.rs
@@ -1,5 +1,5 @@
 //! This is code from [Tungstenite project](https://github.com/snapview/tungstenite-rs)
-#![cfg_attr(feature = "cargo-clippy", allow(cast_ptr_alignment))]
+#![cfg_attr(feature = "cargo-clippy", allow(clippy::cast_ptr_alignment))]
 use std::ptr::copy_nonoverlapping;
 use std::slice;
 
@@ -19,7 +19,7 @@ impl<'a> ShortSlice<'a> {
 
 /// Faster version of `apply_mask()` which operates on 8-byte blocks.
 #[inline]
-#[cfg_attr(feature = "cargo-clippy", allow(cast_lossless))]
+#[cfg_attr(feature = "cargo-clippy", allow(clippy::cast_lossless))]
 pub(crate) fn apply_mask(buf: &mut [u8], mask_u32: u32) {
     // Extend the mask to 64 bits
     let mut mask_u64 = ((mask_u32 as u64) << 32) | (mask_u32 as u64);
@@ -50,7 +50,10 @@ pub(crate) fn apply_mask(buf: &mut [u8], mask_u32: u32) {
 // TODO: copy_nonoverlapping here compiles to call memcpy. While it is not so
 // inefficient, it could be done better. The compiler does not understand that
 // a `ShortSlice` must be smaller than a u64.
-#[cfg_attr(feature = "cargo-clippy", allow(needless_pass_by_value))]
+#[cfg_attr(
+    feature = "cargo-clippy",
+    allow(clippy::needless_pass_by_value)
+)]
 fn xor_short(buf: ShortSlice, mask: u64) {
     // Unsafe: we know that a `ShortSlice` fits in a u64
     unsafe {