Cargo Features

[dependencies]
hashlru = { version = "0.11.1", default-features = false, features = ["serde", "hashbrown"] }
default = hashbrown

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

serde

Enables serde

hashbrown default

Enables hashbrown ^0.13

HashLRU has 3 features without comments.