Cargo Features

command-macros has no features set by default.

[dependencies]
command-macros = { version = "0.2.9", features = ["nightly", "dox"] }
nightly = command-macros-plugin
dox

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.

command-macros-plugin nightly?