Cargo Features

[dependencies]
lru = { version = "0.12.2", default-features = false, features = ["nightly"] }
default = hashbrown

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

nightly = hashbrown

Enables nightly of hashbrown

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features.

hashbrown default nightly?

Affects lru::DefaultHasher