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