Cargo Features

ruplicity has no features set by default.

[dependencies]
ruplicity = { version = "0.2.2", features = ["unstable", "lints", "nightly"] }
unstable = lints, nightly
lints unstable? = clippy, nightly
nightly lints? unstable?

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.

clippy lints?