Cargo Features

[dependencies]
number2name = { version = "1.1.2", default-features = false, features = ["cli", "builtin-charsets"] }
default = builtin-charsets, cli

These default features are set whenever number2name is added without default-features = false somewhere in the dependency tree.

cli default = structopt
builtin-charsets default = lazy_static

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 builtin-charsets
structopt cli