Trait FromRequest not implemented for User/Admin when trying to use guards

[SpootDev]

rust 1.60 stable
rocket_auth = { version = "0.4.0", features = ["sqlx-postgres"] }
rocket = { git = "https://github.com/SergioBenitez/Rocket/", features = ["json", "secrets", "uuid"]}
rocket_dyn_templates = { git = "https://github.com/SergioBenitez/Rocket/", features = ["tera"]}

I see the traits in the rocket_auth lib.......so, obviously, I'm doing something silly. Looking for input on what I'm doing wrong.

use rocket_auth::{Users, Error, Auth, Signup, Login, User, AdminUser};

#[get("/admin-panel")]
fn admin_panel(user: AdminUser) -> String {
format!("Hello {}.", user.email())
}

error[E0277]: the trait bound rocket_auth::AdminUser: FromRequest<'_> is not satisfied
--> src/admin/bp_user.rs:27:22
|
27 | fn admin_panel(user: AdminUser) -> String {
| ^^^^^^^^^ the trait FromRequest<'_> is not implemented for rocket_auth::AdminUser

[SpootDev]

Specifying the rc1 cleared this up.
rocket = { version = "0.5.0-rc.1", features = ["json", "secrets", "uuid"]}
rocket_dyn_templates = { version = "0.1.0-rc.1", features = ["tera"]}