Cargo Features
futures_codec has no features set by default.
[dependencies]
futures_codec = { version = "0.4.1", features = ["json", "cbor"] }- json = serde, serde_json
- cbor = serde, serde_cbor
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.