Cargo Features

[dependencies]
spawn-wait = { version = "0.2.2", default-features = false, features = ["blocking_wait_any"] }
default = blocking_wait_any

The blocking_wait_any feature is set by default whenever spawn-wait is added without default-features = false somewhere in the dependency tree.

blocking_wait_any default = signal-hook

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.

signal-hook blocking_wait_any