Cargo Features

jsonschema = { version = "0.17.1", default-features = false, features = ["cli", "draft202012", "resolve-http", "resolve-file"] }
default = cli, resolve-file, resolve-http

These default features are set whenever jsonschema is added without default-features = false somewhere in the dependency tree.

cli default = clap
draft201909 draft202012
resolve-http default = reqwest
resolve-file default

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features.

clap cli
reqwest resolve-http