Cargo Features

[dependencies]
bincode = { version = "2.0.0-rc.3", default-features = false, features = ["std", "alloc", "derive", "serde"] }
default = derive, std

These default features are set whenever bincode is added without default-features = false somewhere in the dependency tree.

std default = alloc

Enables std of optional serde

serde:

Provide impls for common standard library types like Vec<T> and HashMap<K, V>.
Requires a dependency on the Rust standard library.

Affects de_owned::decode_from_std_read, ser::encode_into_std_write

alloc std

Enables alloc of optional serde

serde:

Provide impls for types in the Rust core allocation and collections library including String, Box<T>, Vec<T>, and Cow<T>. This is a subset of std but may be enabled without depending on all of std.

Affects ser::encode_to_vec, bincode::spec

derive default = bincode_derive

Affects bincode::spec

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features.

bincode_derive derive
serde implicit feature

Enables serde

serde:

A generic serialization/deserialization framework

Affects features::serde