Cargo Features

byte-array-struct has no features set by default.

[dependencies]
byte-array-struct = { version = "0.2.0", features = ["with-serde"] }
with-serde = serde, serde_json

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.

serde with-serde?
serde_json with-serde?