Actix-web: Example on README does not compile

[SuperV1234]

Trying to compile

use actix_web::{get, App, HttpServer, Responder};

#[get("/{id}/{name}/index.html")]
async fn index(info: web::Path<(u32, String)>) -> impl Responder {
    format!("Hello {}! id:{}", info.1, info.0)
}

#[actix_rt::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| App::new().service(index))
        .bind("127.0.0.1:8080")?
        .start()
        .await
}

with rustc stable 1.39.x produces

error[E0433]: failed to resolve: could not find `main` in `actix_rt`                                                --> src\main.rs:8:13                                                                                                \|                                                                                                                8 \| #[actix_rt::main]                                                                                                \|             ^^^^ could not find `main` in `actix_rt`                                                                                                                                                                              error[E0433]: failed to resolve: use of undeclared type or module `web`                                             --> src\main.rs:4:22                                                                                                \|                                                                                                                4 \| async fn index(info: web::Path<(u32, String)>) -> impl Responder {                                               \|                      ^^^ use of undeclared type or module `web`                                                                                                                                                                   error[E0277]: the trait bound `actix_server::server::Server: std::future::Future` is not satisfied                    --> src\main.rs:10:5                                                                                                \|                                                                                                              10  \| /     HttpServer::new(\|\| App::new().service(index))                                                          11  \| \|         .bind("127.0.0.1:8080")?                                                                           12  \| \|         .start()                                                                                           13  \| \|         .await                                                                                                 \| \|______________^ the trait `std::future::Future` is not implemented for `actix_server::server::Server`                                                                                                                          error[E0277]: `main` has invalid return type `impl std::future::Future`                                             --> src\main.rs:9:20                                                                                                \|                                                                                                                9 \| async fn main() -> std::io::Result<()> {                                                                         \|                    ^^^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`   \|                                                                                                                  = help: consider using `()`, or a `Result`
--

[fafhrd91]

Because you need actix-web from master

[denysvitali]

You need to add the following to your Cargo.toml:

actix-rt = "1.0.0-alpha.1"

[chillcaw]

I couldn't get the example to compile with master.

actix-web = {git = "https://github.com/actix/actix-web.git", branch = "master"}
# Tried with and without actix_rt
actix-rt = "1.0.0-alpha.1"

actix-http is failing to compile with a boat load of errors, from I can see it's unresolved imports from actix_rt and trait bounds problems with h2

[fafhrd91]

alpha.3 should work

[sriio]

Works with that :

[dependencies]
actix-web = "2.0.0-alpha.4"
actix-rt = "1.0.0-alpha.3"

PS : Need to use also 'web'