Cargo Features

[dependencies]
btm = { version = "0.14.1", default-features = false, features = ["bin"] }
default = bin

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

bin default = clap

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.

clap bin