It's the typical Rust problem and my biggest gripe with the Rust ecosystem: many libraries are using unstable/nightly features, making development needlessly frustrating for people using the stable Rust release.

Rust devs, please don't. Not every Rust developer uses rustup or knows how to solve this issue, not everyone is willing or able to use the nightly build just so dependency 21/63 doesn't throw errors.

It doesn’t appear that this uses any nightly or unstable features. The parent didn’t say why this doesn’t compile, it’s probably something else. Maybe they have an older rustc.

Nice suggestion. I had not updated my rust installation in a couple of months.

After doing rustup update now it installs correctly. Thank you.