Cargo Features

[dependencies]
http_req = { version = "0.13.0", default-features = false, features = ["rust-tls", "native-tls"] }
default = native-tls

The native-tls feature is set by default whenever http_req is added without default-features = false somewhere in the dependency tree.

rust-tls = rustls, rustls-pemfile, rustls-pki-types, webpki, 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.

native-tls default
rustls rust-tls?
rustls-pemfile rust-tls?
rustls-pki-types rust-tls?
webpki rust-tls?
webpki-roots rust-tls?