Function cargo::sources::path::read_nested_packages

source ยท 
fn read_nested_packages(
    path: &Path,
    all_packages: &mut HashMap<PackageId, Vec<Package>>,
    source_id: SourceId,
    gctx: &GlobalContext,
    visited: &mut HashSet<PathBuf>,
    errors: &mut Vec<Error>,
) -> CargoResult<()>