Cargo Features

AsyncCell has no features set by default.

[dependencies]
async_cell = { version = "0.2.3", features = ["no_std", "deadlock_detection", "weakref"] }
no_std
deadlock_detection = parking_lot

Enables deadlock_detection of parking_lot

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.

weakref implicit feature

Enables weakref

weakref:

Copy+static reference type which checks liveness at runtime

parking_lot deadlock_detection?