Cargo Features

rocket_empty has no features set by default.

[dependencies]
rocket_empty = { version = "0.1.2", features = ["schema"] }
schema = revolt_okapi, revolt_rocket_okapi

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

revolt_okapi schema?
revolt_rocket_okapi schema?