Cargo Features

WebFinger has no features set by default.

webfinger = { version = "0.5.1", features = ["async"] }
async = async-trait

Affects tests::MyAsyncResolver

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.

async-trait async?