Function add_upstream_rust_crates 

fn add_upstream_rust_crates(
    cmd: &mut dyn Linker,
    sess: &Session,
    archive_builder_builder: &dyn ArchiveBuilderBuilder,
    crate_info: &CrateInfo,
    crate_type: CrateType,
    tmpdir: &Path,
    link_output_kind: LinkOutputKind,
)