Cargo Features

rusty-leveldb-arc has no features set by default.

[dependencies]
rusty-leveldb-arc = { version = "2.0.0", features = ["async"] }
async = tokio

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.

tokio async?