Cargo Features

polyverse-file-rotate has no features set by default.

[dependencies]
polyverse-file-rotate = { version = "0.3.0", features = ["async"] }
async = futures, futures-util, 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](https://rust-lang.github.io/rfcs/3491-remove-implicit-features.html).

futures async?
futures-util async?
tokio async?