Cargo Features

[dependencies]
builder-pattern = { version = "0.4.2", default-features = false, features = ["future"] }
default = future

The future feature is set by default whenever builder-pattern is added without default-features = false somewhere in the dependency tree.

future default = futures

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.

futures future