Cargo Features

[dependencies]
cita-tool = { version = "0.22.0", default-features = false, features = ["openssl", "rustls"] }
default = rustls

The rustls feature is set by default whenever cita-tool is added without default-features = false somewhere in the dependency tree.

openssl = hyper-tls
rustls default = hyper-rustls

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.

hyper-rustls rustls
hyper-tls openssl?