Fix linter errors.

src/lib.rs

@@ -28,16 +28,12 @@
 //! use actix_web::{App, web, HttpServer};
 //! use tracing_actix_web::TracingLogger;
 //!
-//! fn main() {
-//!     // Init your `tracing` subscriber here!
-//!
-//!     let server = HttpServer::new(|| {
-//!         App::new()
-//!             // Mount `TracingLogger` as a middleware
-//!             .wrap(TracingLogger::default())
-//!             .service( /*  */ )
-//!     });
-//! }
+//! let server = HttpServer::new(|| {
+//!     App::new()
+//!         // Mount `TracingLogger` as a middleware
+//!         .wrap(TracingLogger::default())
+//!         .service( /*  */ )
+//! });
 //! ```
 //!
 //! Check out [the examples on GitHub](https://github.com/LukeMathWalker/tracing-actix-web/tree/main/examples) to get a taste of how [`TracingLogger`] can be used to observe and monitor your

src/middleware.rs

@@ -113,6 +113,7 @@ pub struct TracingLoggerMiddleware<S, RootSpanBuilder> {
     root_span_builder: std::marker::PhantomData<RootSpanBuilder>,
 }
 
+#[allow(clippy::type_complexity)]
 impl<S, B, RootSpanType> Service<ServiceRequest> for TracingLoggerMiddleware<S, RootSpanType>
 where
     S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,

src/request_id.rs

@@ -42,9 +42,9 @@ impl std::ops::Deref for RequestId {
     }
 }
 
-impl std::convert::Into<Uuid> for RequestId {
-    fn into(self) -> Uuid {
-        self.0
+impl From<RequestId> for Uuid {
+    fn from(r: RequestId) -> Self {
+        r.0
     }
 }
 
@@ -53,10 +53,11 @@ impl std::fmt::Display for RequestId {
         write!(f, "{}", self.0)
     }
 }
+
 impl FromRequest for RequestId {
+    type Config = ();
     type Error = RequestIdExtractionError;
     type Future = Ready<Result<Self, Self::Error>>;
-    type Config = ();
 
     fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
         ready(

src/root_span.rs

@@ -40,16 +40,16 @@ impl std::ops::Deref for RootSpan {
     }
 }
 
-impl std::convert::Into<Span> for RootSpan {
-    fn into(self) -> Span {
-        self.0
+impl From<RootSpan> for Span {
+    fn from(r: RootSpan) -> Self {
+        r.0
     }
 }
 
 impl FromRequest for RootSpan {
+    type Config = ();
     type Error = RootSpanExtractionError;
     type Future = Ready<Result<Self, Self::Error>>;
-    type Config = ();
 
     fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
         ready(