Fix fmt panic at statement (rust-lang/rust#77774)

Author: pymongo

examples/actix_web_path_segement_params.rs

@@ -4,7 +4,8 @@ use actix_web::{get, test, web, App, HttpRequest, HttpResponse};
 fn path_segment_param(req: HttpRequest, path: web::Path<(u32,)>) -> HttpResponse {
     // uri: /user/123, path: None, skip: 9, segments: [("id", Segment(6, 9))]
     dbg!(req.clone());
-    println!("path.0 = {}", path.0.0);
+    let user_id: u32 = path.into_inner().0;
+    println!("path = {}", user_id);
     println!("&req.match_info()[\"id\"] = {}", &req.match_info()["id"]);
     println!(
         "req.match_info().query(\"id\") = {}",
@@ -14,7 +15,7 @@ fn path_segment_param(req: HttpRequest, path: web::Path<(u32,)>) -> HttpResponse
         "req.match_info().get(\"id\").unwrap() = {}",
         req.match_info().get("id").unwrap()
     );
-    HttpResponse::Ok().body("asdf")
+    HttpResponse::Ok().body("ok")
 }
 
 async fn test_path_segment_param() {