Make a crate compatible with latest Rocket.rs

[manio]

Hi!
The crate is not compatible with recent master version of rocket (probably v0.5) which has the async runtime.
Could you please add this support?

Currently I have compilation error:

error[E0053]: method `authorizing` has an incompatible type for trait
  --> src/main.rs:44:5
   |
44 |     fn authorizing(request: &'a Request<'r>, authorization: Option<&'a str>) -> Option<Self> {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `rocket::request::request::Request`, found struct `rocket::Request`
   |
   = note: expected fn pointer `fn(&'a rocket::request::request::Request<'r>, std::option::Option<_>) -> std::option::Option<_>`
              found fn pointer `fn(&'a rocket::Request<'r>, std::option::Option<_>) -> std::option::Option<_>`
   = note: perhaps two different versions of crate `rocket` are being used?

Steps to reproduce:
Change a rocket to git version in Cargo.toml:
rocket = { git = "https://github.com/SergioBenitez/Rocket" }
and set in project's [package] section:
edition = "2018"

ps. maybe this code would be useful when doing transition:
https://github.com/Weasy666/rocket_airlock

[magiclen]

This crate and my other crates related to Rocket will support Rocket 0.5 when it releases.

[magiclen]

The master branch currently supports Rocket 0.5.0-dev. I'm looking forward to the release of Rocket 0.5.

[magiclen]

It's 2023 now. The Rocket 0.5 has not released yet, unfortunately.