Cargo Features

[dependencies]
clap-port-flag = { version = "0.4.0", default-features = false, features = ["addr_with_port", "fd"] }
default = fd

The fd feature is set by default whenever clap-port-flag is added without default-features = false somewhere in the dependency tree.

addr_with_port
fd default

clap-port-flag has 3 features without comments.