Cargo Features

recursion-schemes has no features set by default.

recursion-schemes = { version = "0.1.3", features = ["experimental", "backcompat"] }

Affects recursion-schemes::join_future

backcompat = recursion

Affects functor::MapLayerFromFunctor

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.

recursion backcompat?

Enables recursion ^0.4