Cargo Features

[dependencies]
luac-parser = { version = "0.5.2", default-features = false, features = ["rmp-serde"] }
default = rmp-serde

The rmp-serde feature is set by default whenever luac-parser is added without default-features = false somewhere in the dependency tree.

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.

rmp-serde default