Cargo Features

bit-vec = { version = "0.6.3", default-features = false, features = ["std", "serde_std", "serde_no_std"] }
default = std

The std feature is set by default whenever bit-vec is added without default-features = false somewhere in the dependency tree.

std default serde_std?
serde_std = std

Enables std of serde


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


Enables alloc of 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.

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 serde_no_std? serde_std?