Cargo Features

[dependencies]
winmsg-executor = { version = "0.2.1", default-features = false, features = ["backend-windows", "backend-async-task"] }
default = backend-windows

The backend-windows feature is set by default whenever winmsg-executor is added without default-features = false somewhere in the dependency tree.

backend-windows default
backend-async-task = async-task

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.

async-task backend-async-task?