Cargo Features

[dependencies]
notify-debouncer-mini = { version = "0.4.1", default-features = false, features = ["crossbeam", "serde"] }
default = crossbeam

The crossbeam feature is set by default whenever notify-debouncer-mini is added without default-features = false somewhere in the dependency tree.

crossbeam default = crossbeam-channel

can't use dep:crossbeam-channel and feature name crossbeam-channel below rust 1.60

Enables crossbeam-channel of notify

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.

crossbeam-channel crossbeam
serde implicit feature

Enables serde

serde:

A generic serialization/deserialization framework