Cargo Features

[dependencies]
vale = { version = "0.0.0", default-features = false, features = ["rocket"] }
default = rocket

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

rocket default = rkt

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.

rkt rocket

Enables rocket ^0.4