Suggested adding dep:foo to the foo feature if it exists for unused optional dependencies #14017
Closed as not planned
Description
cargo-features = ["edition2024"]
[package]
name = "cargo-14010"
version = "0.1.0"
edition = "2024"
[dependencies]
serde = { version = "1.0.203", optional = true }
[features]
serde = []$ cargo +nightly check -Zcargo-lints
warning: unused optional dependency
--> Cargo.toml:8:1
|
8 | serde = { version = "1.0.203", optional = true }
| -----
|
= note: `cargo::unused_optional_dependency` is set to `warn` by default
= help: remove the dependency or activate it in a feature with `dep:serde`
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00sLikely the user intended for dep:serde to be on the serde feature and it might be nice for us to call that out explicitly.