Cargo Features

[dependencies]
vecarray = { version = "0.1.3", default-features = false, features = ["std"] }
default = std

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

std default

Enables std of parity-codec and serde

serde:

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

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 std
parity-codec std