Rust Rocket REST API

I can not compile main.rs file. And in probabilityofunitinjectorfail I want to add random generated number 0-100.

error: cannot find function 'iginite' in create 'rocket'.

Here is main.rs:

#![feature(decl_macro)]
#[macro_use] extern crate rocket;

#[get("/probabilityOfUnitInjectorFail")]
fn probabilityofunitinjectorfail() -> &'static str {
    "/probabilityOfUnitInjectorFail"
}

fn main() {
        rocket::ignite()
        .mount("/", routes![probabilityofunitinjectorfail])
        .launch();

}