Cargo Features
Rustmann has no features set by default.
[dependencies]
rustmann = { version = "0.8.0", features = ["tls"] }- tls = rustls-pki-types, tokio-rustls, webpki-roots
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.