Cargo Features

[dependencies]
mf1 = { version = "0.1.6", default-features = false, features = ["macros"] }
default = macros

The macros feature is set by default whenever mf1 is added without default-features = false somewhere in the dependency tree.

macros default = mf1-macros

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.

mf1-macros macros