compile failed with rocket

[KunPengRen]

error[E0308]: mismatched types
  --> src/common/manager.rs:12:57
   |
12 |   pub async fn run_manager() -> Result<(), rocket::Error> {
   |  _______________________________-------------------------_^
   | |                               |
   | |                               expected `Result<(), rocket::Error>` because of return type
13 | |     //     let mut my_config = Config::development();
14 | |     //     my_config.set_port(18001);
15 | |     let db: HashMap<Key, String> = HashMap::new();
...  |
51 | |         .await
52 | | }
   | |_^ expected `()`, found struct `Rocket`
   |
   = note: expected enum `Result<(), _>`
              found enum `Result<Rocket<Ignite>, _>`

Rustc version:

$ rustc --version                   
rustc 1.62.0-nightly (1f7fb6413 2022-04-10)

[raoufro]

I was trying to make the docker image, but I had the same issue when it was compiling the source code.