Cargo Features

[dependencies]
tokio-rustls = { version = "0.26.1", default-features = false, features = ["aws_lc_rs", "aws-lc-rs", "early-data", "fips", "logging", "ring", "tls12"] }
default = aws_lc_rs, logging, tls12

These default features are set whenever tokio-rustls is added without default-features = false somewhere in the dependency tree.

aws_lc_rs default aws-lc-rs?

Enables aws_lc_rs of rustls

aws-lc-rs = aws_lc_rs

Alias because Cargo features commonly use -

early-data
fips

Enables fips of rustls

logging default

Enables logging of rustls

ring

Enables ring of rustls

tls12 default

Enables tls12 of rustls