re-export rt in web and add main macro (#1575)

src/types/form.rs

@@ -252,6 +252,7 @@ pub struct UrlEncoded<U> {
     fut: Option<LocalBoxFuture<'static, Result<U, UrlencodedError>>>,
 }
 
+#[allow(clippy::borrow_interior_mutable_const)]
 impl<U> UrlEncoded<U> {
     /// Create a new future to URL encode a request
     pub fn new(req: &HttpRequest, payload: &mut Payload) -> UrlEncoded<U> {

src/types/json.rs

@@ -319,6 +319,7 @@ where
     U: DeserializeOwned + 'static,
 {
     /// Create `JsonBody` for request.
+    #[allow(clippy::borrow_interior_mutable_const)]
     pub fn new(
         req: &HttpRequest,
         payload: &mut Payload,

src/types/payload.rs

@@ -315,6 +315,7 @@ pub struct HttpMessageBody {
 
 impl HttpMessageBody {
     /// Create `MessageBody` for request.
+    #[allow(clippy::borrow_interior_mutable_const)]
     pub fn new(req: &HttpRequest, payload: &mut dev::Payload) -> HttpMessageBody {
         let mut len = None;
         if let Some(l) = req.headers().get(&header::CONTENT_LENGTH) {