diff --git a/actix-web-codegen/tests/trybuild.rs b/actix-web-codegen/tests/trybuild.rs
index 8839dca3d..9f0aa02f4 100644
--- a/actix-web-codegen/tests/trybuild.rs
+++ b/actix-web-codegen/tests/trybuild.rs
@@ -1,4 +1,4 @@
-#[rustversion::stable(1.59)] // MSRV
+#[rustversion::stable(1.65)] // MSRV
 #[test]
 fn compile_macros() {
     let t = trybuild::TestCases::new();
diff --git a/actix-web-codegen/tests/trybuild/route-custom-lowercase.stderr b/actix-web-codegen/tests/trybuild/route-custom-lowercase.stderr
index 243c4dd68..88198a55d 100644
--- a/actix-web-codegen/tests/trybuild/route-custom-lowercase.stderr
+++ b/actix-web-codegen/tests/trybuild/route-custom-lowercase.stderr
@@ -8,10 +8,20 @@ error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = String>
   --> tests/trybuild/route-custom-lowercase.rs:14:55
    |
 14 |     let srv = actix_test::start(|| App::new().service(index));
-   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for `fn() -> impl std::future::Future<Output = String> {index}`
+   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for fn item `fn() -> impl std::future::Future<Output = String> {index}`
    |                                               |
    |                                               required by a bound introduced by this call
    |
+   = help: the following other types implement trait `HttpServiceFactory`:
+             (A, B)
+             (A, B, C)
+             (A, B, C, D)
+             (A, B, C, D, E)
+             (A, B, C, D, E, F)
+             (A, B, C, D, E, F, G)
+             (A, B, C, D, E, F, G, H)
+             (A, B, C, D, E, F, G, H, I)
+           and $N others
 note: required by a bound in `App::<T>::service`
   --> $WORKSPACE/actix-web/src/app.rs
    |
diff --git a/actix-web-codegen/tests/trybuild/route-duplicate-method-fail.stderr b/actix-web-codegen/tests/trybuild/route-duplicate-method-fail.stderr
index 7eac84f3e..bda736348 100644
--- a/actix-web-codegen/tests/trybuild/route-duplicate-method-fail.stderr
+++ b/actix-web-codegen/tests/trybuild/route-duplicate-method-fail.stderr
@@ -5,15 +5,25 @@ error: HTTP method defined more than once: `GET`
   |                                   ^^^^^
 
 error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = String> {index}: HttpServiceFactory` is not satisfied
-   --> tests/trybuild/route-duplicate-method-fail.rs:12:55
-    |
-12  |     let srv = actix_test::start(|| App::new().service(index));
-    |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for `fn() -> impl std::future::Future<Output = String> {index}`
-    |                                               |
-    |                                               required by a bound introduced by this call
-    |
+  --> tests/trybuild/route-duplicate-method-fail.rs:12:55
+   |
+12 |     let srv = actix_test::start(|| App::new().service(index));
+   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for fn item `fn() -> impl std::future::Future<Output = String> {index}`
+   |                                               |
+   |                                               required by a bound introduced by this call
+   |
+   = help: the following other types implement trait `HttpServiceFactory`:
+             (A, B)
+             (A, B, C)
+             (A, B, C, D)
+             (A, B, C, D, E)
+             (A, B, C, D, E, F)
+             (A, B, C, D, E, F, G)
+             (A, B, C, D, E, F, G, H)
+             (A, B, C, D, E, F, G, H, I)
+           and $N others
 note: required by a bound in `App::<T>::service`
-   --> $WORKSPACE/actix-web/src/app.rs
-    |
-    |         F: HttpServiceFactory + 'static,
-    |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
+  --> $WORKSPACE/actix-web/src/app.rs
+   |
+   |         F: HttpServiceFactory + 'static,
+   |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
diff --git a/actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr b/actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr
index bc8497c10..9f2f788fb 100644
--- a/actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr
+++ b/actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr
@@ -7,15 +7,25 @@ error: The #[route(..)] macro requires at least one `method` attribute
   = note: this error originates in the attribute macro `route` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = String> {index}: HttpServiceFactory` is not satisfied
-   --> tests/trybuild/route-missing-method-fail.rs:12:55
-    |
-12  |     let srv = actix_test::start(|| App::new().service(index));
-    |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for `fn() -> impl std::future::Future<Output = String> {index}`
-    |                                               |
-    |                                               required by a bound introduced by this call
-    |
+  --> tests/trybuild/route-missing-method-fail.rs:12:55
+   |
+12 |     let srv = actix_test::start(|| App::new().service(index));
+   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for fn item `fn() -> impl std::future::Future<Output = String> {index}`
+   |                                               |
+   |                                               required by a bound introduced by this call
+   |
+   = help: the following other types implement trait `HttpServiceFactory`:
+             (A, B)
+             (A, B, C)
+             (A, B, C, D)
+             (A, B, C, D, E)
+             (A, B, C, D, E, F)
+             (A, B, C, D, E, F, G)
+             (A, B, C, D, E, F, G, H)
+             (A, B, C, D, E, F, G, H, I)
+           and $N others
 note: required by a bound in `App::<T>::service`
-   --> $WORKSPACE/actix-web/src/app.rs
-    |
-    |         F: HttpServiceFactory + 'static,
-    |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
+  --> $WORKSPACE/actix-web/src/app.rs
+   |
+   |         F: HttpServiceFactory + 'static,
+   |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
diff --git a/actix-web-codegen/tests/trybuild/routes-missing-args-fail.stderr b/actix-web-codegen/tests/trybuild/routes-missing-args-fail.stderr
index 785d6f326..e845241a4 100644
--- a/actix-web-codegen/tests/trybuild/routes-missing-args-fail.stderr
+++ b/actix-web-codegen/tests/trybuild/routes-missing-args-fail.stderr
@@ -13,15 +13,25 @@ error: Invalid input for macro
   | ^^^^^^
 
 error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = String> {index}: HttpServiceFactory` is not satisfied
-   --> tests/trybuild/routes-missing-args-fail.rs:13:55
-    |
-13  |     let srv = actix_test::start(|| App::new().service(index));
-    |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for `fn() -> impl std::future::Future<Output = String> {index}`
-    |                                               |
-    |                                               required by a bound introduced by this call
-    |
+  --> tests/trybuild/routes-missing-args-fail.rs:13:55
+   |
+13 |     let srv = actix_test::start(|| App::new().service(index));
+   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for fn item `fn() -> impl std::future::Future<Output = String> {index}`
+   |                                               |
+   |                                               required by a bound introduced by this call
+   |
+   = help: the following other types implement trait `HttpServiceFactory`:
+             (A, B)
+             (A, B, C)
+             (A, B, C, D)
+             (A, B, C, D, E)
+             (A, B, C, D, E, F)
+             (A, B, C, D, E, F, G)
+             (A, B, C, D, E, F, G, H)
+             (A, B, C, D, E, F, G, H, I)
+           and $N others
 note: required by a bound in `App::<T>::service`
-   --> $WORKSPACE/actix-web/src/app.rs
-    |
-    |         F: HttpServiceFactory + 'static,
-    |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
+  --> $WORKSPACE/actix-web/src/app.rs
+   |
+   |         F: HttpServiceFactory + 'static,
+   |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
diff --git a/actix-web-codegen/tests/trybuild/routes-missing-method-fail.stderr b/actix-web-codegen/tests/trybuild/routes-missing-method-fail.stderr
index 38a6d2f9b..228dced9c 100644
--- a/actix-web-codegen/tests/trybuild/routes-missing-method-fail.stderr
+++ b/actix-web-codegen/tests/trybuild/routes-missing-method-fail.stderr
@@ -7,15 +7,25 @@ error: The #[routes] macro requires at least one `#[<method>(..)]` attribute.
   = note: this error originates in the attribute macro `routes` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `fn() -> impl std::future::Future<Output = String> {index}: HttpServiceFactory` is not satisfied
-   --> tests/trybuild/routes-missing-method-fail.rs:12:55
-    |
-12  |     let srv = actix_test::start(|| App::new().service(index));
-    |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for `fn() -> impl std::future::Future<Output = String> {index}`
-    |                                               |
-    |                                               required by a bound introduced by this call
-    |
+  --> tests/trybuild/routes-missing-method-fail.rs:12:55
+   |
+12 |     let srv = actix_test::start(|| App::new().service(index));
+   |                                               ------- ^^^^^ the trait `HttpServiceFactory` is not implemented for fn item `fn() -> impl std::future::Future<Output = String> {index}`
+   |                                               |
+   |                                               required by a bound introduced by this call
+   |
+   = help: the following other types implement trait `HttpServiceFactory`:
+             (A, B)
+             (A, B, C)
+             (A, B, C, D)
+             (A, B, C, D, E)
+             (A, B, C, D, E, F)
+             (A, B, C, D, E, F, G)
+             (A, B, C, D, E, F, G, H)
+             (A, B, C, D, E, F, G, H, I)
+           and $N others
 note: required by a bound in `App::<T>::service`
-   --> $WORKSPACE/actix-web/src/app.rs
-    |
-    |         F: HttpServiceFactory + 'static,
-    |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`
+  --> $WORKSPACE/actix-web/src/app.rs
+   |
+   |         F: HttpServiceFactory + 'static,
+   |            ^^^^^^^^^^^^^^^^^^ required by this bound in `App::<T>::service`