Cargo Features

[dependencies]
ipgrep = { version = "0.2.0", default-features = false, features = ["cli", "ipgrep"] }
default = cli

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

cli default = ipgrep
ipgrep cli = clap, clap-verbosity-flag

Required by the binary

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.

clap ipgrep?
clap-verbosity-flag ipgrep?