pub fn add_registries(
        &mut self,
        registries: impl IntoIterator<Item = (impl Into<String>, impl Into<String>)>,
    ) -> &mut Self {
        self.registries.extend(
            registries
                .into_iter()
                .map(|(name, url)| (name.into(), url.into())),
        );
        self
    }
Add alternate registries by (name, URL) pairs.

This is a temporary workaround until [Cargo issue #9052](https://github.com/rust-lang/cargo/issues/9052)
is resolved.
tools/hakari/src/hakari.rs