Cargo Features

[dependencies]
lang-unicodes = { version = "0.1.1", default-features = false, features = ["with_extra"] }
default = with_extra

The with_extra feature is set by default whenever lang-unicodes is added without default-features = false somewhere in the dependency tree.

with_extra default = lazy_static, opencc-rs

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.

lazy_static build with_extra
opencc-rs build with_extra