Cargo Features

[dependencies]
async-lock = { version = "3.3.0", default-features = false, features = ["std"] }
default = std

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

std default

Enables std of event-listener ^4.0.0 and event-listener-strategy ^0.4.0

async-lock has 2 features without comments.