Since the conrod project appears to be explicitly unmaintained, would you be happy for an unmaintained advisory to be placed in [Rustsec's `advisory-db`](https://github.com/rustsec/advisory-db)? The advisory would allow use of either `conrod` or `conrod-core` to be detected and warned against by `cargo-audit`. If the project becomes maintained in the future, the advisory could be updated or removed as appropriate. Pull request adding the unmaintained advisories to `advisory-db` is @ https://github.com/rustsec/advisory-db/pull/1871.