Cargo Features

[dependencies]
garble = { version = "0.0.1", default-features = false, features = ["simple"] }
default = simple

The simple feature is set by default whenever garble is added without default-features = false somewhere in the dependency tree.

simple default = rand

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.

rand simple