Cargo Features

[dependencies]
twirs = { version = "1.0.0", default-features = false, features = ["parallel"] }
default = parallel

The parallel feature is set by default whenever twirs is added without default-features = false somewhere in the dependency tree.

parallel default = rayon

Enables rayon of ndarray ^0.15.6

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.

rayon parallel