Unable to Active v4 Feature for Example

[ca-mantis-shrimp]

Describe the bug
Im just trying to write some learning tests and i'm having trouble enabling the "v4" feature for this crate.

To Reproduce
main.rs

use uuid::Uuid;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    #[cfg(feature = "v4")] {
        let my_uuid = Uuid::new_v4()?;
        println!("{}", my_uuid);
    }
    Ok(())
}

Cargo.toml

[dependencies]

[dependencies.uuid]
version = "0.8"
features = ["serde", "v4"]

I've tried every permutation of the dependency setup but I can't get this example build to run! it runs successfully, but just doesn't do anything
Expected behavior
the example of building a v4 UUID and Printing it runs
Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Windows on WSL if that matters, but i don't think it should?

[ca-mantis-shrimp]

I made it work after I removed the ? and the cfg directive. don't know why the cfg directive broke it since it was only supposed to check but I got it working now after seeing #521

[Dylan-DPC-zz]

if you were writing this test in a separate project you don't need to feature gate it since the feature will always be enabled as you have mentioned it in Cargo.toml.