Cargo Features

biome_formatter has no features set by default.

[dependencies]
biome_formatter = { version = "0.5.7", features = ["serde"] }
serde = schemars

Enables serde, serde of biome_rowan

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.

schemars serde?