ssl-client dont work

Example for websocket using SSL does not work, can someone help me?

Cargo.toml

[dependencies]
websocket = "0.26.2"
futures = "0.3.5"
tokio = "0.2.22"

Erro

error[E0432]: unresolved import `futures::sync`
 --> src/main.rs:8:14
  |
8 | use futures::sync::mpsc;
  |              ^^^^ help: a similar path exists: `websocket::futures::sync`

error[E0433]: failed to resolve: could not find `current_thread` in `runtime`
  --> src/main.rs:18:55
   |
18 |     let mut runtime = tokio::runtime::current_thread::Builder::new()
   |                                                       ^^^^^^^ not found in `tokio::runtime::current_thread`

error: the `and_then` method cannot be invoked on a trait object
   --> src/main.rs:52:10
    |
52  |         .and_then(|(duplex, _)| {
    |          ^^^^^^^^
    | 

Start with the example's Cargo.toml and src/main.rs, then compare the declared futures and tokio versions with the APIs used in the imports and runtime setup. Reproduce the reported compiler errors and determine the compatible example configuration; done means the SSL client example builds and runs without these errors.