async fn discover_dependencies(
root_id: &PackageId,
root: &PackageInfo,
source: &dyn Source,
) -> Result<DiscoveredPackages, ResolveError>
async fn discover_dependencies(
root_id: &PackageId,
root: &PackageInfo,
source: &dyn Source,
) -> Result<DiscoveredPackages, ResolveError>