Cargo Features

HashedPermutation has no features set by default.

[dependencies]
hashed-permutation = { version = "3.0.2", features = ["use-rand"] }
use-rand = rand

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.

rand use-rand?