Cargo Features

[dependencies]
ysay = { version = "0.3.2", default-features = false, features = ["client"] }
default = client

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

client default = env_logger, structopt

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.

env_logger client
structopt client