Nitpick: The installation instructions aren't very friendly for someone who hasn't installed Rust before, as it asks them to install 2 different toolchains even though they presumably only need one, and then install a separate musl target for each toolchain even if they don't want to use musl. Also `rustup target install` isn't a documented subcommand, perhaps you meant `rustup target add`?
Can someone explain what is different between containers and Open Containers, and why it matters?
Is this project still active? There hasn't been much activity on the Oracle blog, except for the release announcement.