Cargo Features

IRC3 has no features set by default.

[dependencies]
irc3 = { version = "0.3.0", features = ["tls"] }
tls = async-tls

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-tls tls?

Enables async-tls ^0.6