Cargo Features

[dependencies]
virtualenv-rs = { version = "0.0.1", default-features = false, features = ["install", "parallel"] }
default = install

The install feature is set by default whenever virtualenv-rs is added without default-features = false somewhere in the dependency tree.

install default = install-wheel-rs, minreq
parallel = rayon

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.

install-wheel-rs install
minreq install
rayon parallel?