return rawGoModSummary(m)
	}

	if cfg.BuildMod == "vendor" {
		summary := &modFileSummary{
			module: module.Version{Path: m.Path},
		}

		readVendorList(VendorDir())
		if vendorVersion[m.Path] != m.Version {
			// This module is not vendored, so packages cannot be loaded from it and
			// it cannot be relevant to the build.
			return summary, nil
		}