async fn discover_dependencies_once(
root_id: &PackageId,
root: &PackageInfo,
source: &dyn Source,
selected_named: &BTreeMap<String, PackageSummary>,
) -> Result<DiscoveredPackages, ResolveError>async fn discover_dependencies_once(
root_id: &PackageId,
root: &PackageInfo,
source: &dyn Source,
selected_named: &BTreeMap<String, PackageSummary>,
) -> Result<DiscoveredPackages, ResolveError>