Cargo Features

[dependencies]
gyms = { version = "0.1.0", default-features = false, features = ["atari"] }
default = atari

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

atari default = atari-env

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.

atari-env atari