Cargo Features

[dependencies]
hashed = { version = "0.2.1", default-features = false, features = ["std", "nightly", "truncate"] }
default = std

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

std default
nightly
truncate = num-traits

Affects hashed::Hashed32, hashed::Hashed16, hashed::Hashed8

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.

num-traits truncate?