Cargo Features

spl_tool has no features set by default.

[dependencies]
spl_tool = { version = "0.2.0", features = ["cli"] }
cli = clap, env_logger

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 cli?
env_logger cli?

Enables env_logger ^0.9