Cargo Features

[dependencies]
x-variant = { version = "0.1.2", default-features = false, features = ["serde-prefix-nums", "serde"] }
default = serde

The serde feature is set by default whenever x-variant is added without default-features = false somewhere in the dependency tree.

serde-prefix-nums

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.

serde default