# add serde_derive feature to build-dependency of serde
cargo feature -t build serde +serde_derive

# disable default-features
cargo feature serde ^default

# same as above but more explict
cargo feature serde --disable-default-features

# if you want list all features, just type crate name
cargo feature serde

# enable default-features
cargo feature serde default

# same as above but more explict
cargo feature serde --enable-default-features

# add HtmlDivElement feature to dependency of web_sys 
cargo feature web_sys +HtmlDivElement

# you can skip typing +
cargo feature web_sys HtmlDivElement

# same as above but use `target.'cfg(target_arch = "wasm32")'.dependencies`
cargo feature --target="cfg(target_arch = \"wasm32\")" web_sys HtmlDivElement

# use `^` to remove feature
cargo feature web_sys ^HtmlDivElement