diff --git a/actix-files/src/lib.rs b/actix-files/src/lib.rs
index 3af5282f1..6408e02da 100644
--- a/actix-files/src/lib.rs
+++ b/actix-files/src/lib.rs
@@ -11,8 +11,8 @@
 //!     .service(Files::new("/static", ".").prefer_utf8(true));
 //! ```
 
-#![deny(rust_2018_idioms)]
-#![warn(missing_docs, missing_debug_implementations)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible, missing_docs, missing_debug_implementations)]
 
 use actix_service::boxed::{BoxService, BoxServiceFactory};
 use actix_web::{
diff --git a/actix-http-test/src/lib.rs b/actix-http-test/src/lib.rs
index ff86e565a..e7e479ab2 100644
--- a/actix-http-test/src/lib.rs
+++ b/actix-http-test/src/lib.rs
@@ -1,6 +1,7 @@
 //! Various helpers for Actix applications to use during testing.
 
-#![deny(rust_2018_idioms)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
diff --git a/actix-http/src/lib.rs b/actix-http/src/lib.rs
index 19c66d155..60dc26f0f 100644
--- a/actix-http/src/lib.rs
+++ b/actix-http/src/lib.rs
@@ -14,7 +14,8 @@
 //! [rustls]: https://crates.io/crates/rustls
 //! [trust-dns]: https://crates.io/crates/trust-dns
 
-#![deny(rust_2018_idioms, nonstandard_style, clippy::uninit_assumed_init)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![allow(
     clippy::type_complexity,
     clippy::too_many_arguments,
diff --git a/actix-multipart/src/lib.rs b/actix-multipart/src/lib.rs
index 38a24e28f..3d536e08d 100644
--- a/actix-multipart/src/lib.rs
+++ b/actix-multipart/src/lib.rs
@@ -1,6 +1,7 @@
 //! Multipart form support for Actix Web.
 
-#![deny(rust_2018_idioms)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![allow(clippy::borrow_interior_mutable_const)]
 
 mod error;
diff --git a/actix-router/src/lib.rs b/actix-router/src/lib.rs
index 463e59e42..f616f7fc6 100644
--- a/actix-router/src/lib.rs
+++ b/actix-router/src/lib.rs
@@ -1,6 +1,7 @@
 //! Resource path matching and router.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
diff --git a/actix-test/src/lib.rs b/actix-test/src/lib.rs
index 7e493ce71..934b8f3aa 100644
--- a/actix-test/src/lib.rs
+++ b/actix-test/src/lib.rs
@@ -26,6 +26,9 @@
 //! }
 //! ```
 
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
+
 #[cfg(feature = "openssl")]
 extern crate tls_openssl as openssl;
 #[cfg(feature = "rustls")]
diff --git a/actix-web-actors/src/lib.rs b/actix-web-actors/src/lib.rs
index 7a4823d91..70c957020 100644
--- a/actix-web-actors/src/lib.rs
+++ b/actix-web-actors/src/lib.rs
@@ -1,7 +1,7 @@
 //! Actix actors support for Actix Web.
 
-#![deny(rust_2018_idioms)]
-#![allow(clippy::borrow_interior_mutable_const)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 
 mod context;
 pub mod ws;
diff --git a/actix-web-codegen/src/lib.rs b/actix-web-codegen/src/lib.rs
index cebf9e5fb..52cfc0d8f 100644
--- a/actix-web-codegen/src/lib.rs
+++ b/actix-web-codegen/src/lib.rs
@@ -57,6 +57,8 @@
 //! [DELETE]: macro@delete
 
 #![recursion_limit = "512"]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 
 use proc_macro::TokenStream;
 use quote::quote;
diff --git a/actix-web-codegen/src/route.rs b/actix-web-codegen/src/route.rs
index eac1948a7..a4472efd2 100644
--- a/actix-web-codegen/src/route.rs
+++ b/actix-web-codegen/src/route.rs
@@ -1,7 +1,4 @@
-extern crate proc_macro;
-
-use std::collections::HashSet;
-use std::convert::TryFrom;
+use std::{collections::HashSet, convert::TryFrom};
 
 use actix_router::ResourceDef;
 use proc_macro::TokenStream;
diff --git a/awc/src/lib.rs b/awc/src/lib.rs
index 0cb6c7f4f..06fd33fac 100644
--- a/awc/src/lib.rs
+++ b/awc/src/lib.rs
@@ -95,7 +95,8 @@
 //! # }
 //! ```
 
-#![deny(rust_2018_idioms)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![allow(
     clippy::type_complexity,
     clippy::borrow_interior_mutable_const,
diff --git a/src/lib.rs b/src/lib.rs
index f6ec4082a..a44c9b3fb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -65,6 +65,7 @@
 //! * `secure-cookies` - secure cookies support
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![allow(clippy::needless_doctest_main, clippy::type_complexity)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]