Cargo Features

[dependencies]
dbl-rs = { version = "0.4.0", default-features = false, features = ["native-tls", "rustls-tls"] }
default = rustls-tls

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

native-tls

Enables default-tls of reqwest

reqwest:

Note: this doesn't enable the 'native-tls' feature, which adds specific functionality for it.

rustls-tls default

Enables rustls-tls of reqwest

dbl-rs has 3 features without comments.