Cargo Features

[dependencies]
huby = { version = "0.1.5", default-features = false, features = ["std", "serde"] }
default = std

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

std default = thiserror

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.

thiserror std
serde implicit feature

Enables serde

serde:

A generic serialization/deserialization framework