}
		seen[modRoot] = true
		modRoots = append(modRoots, modRoot)
	}

	for _, g := range wf.Godebug {
		if err := CheckGodebug("godebug", g.Key, g.Value); err != nil {
			return nil, nil, fmt.Errorf("error loading go.work:\n%s:%d: %w", base.ShortPath(path), g.Syntax.Start.Line, err)
		}
	}

	return wf, modRoots, nil
}

				modload.MustHaveModRoot()
				var modRoots []string
				for _, m := range modload.MainModules.Versions() {
					modRoots = append(modRoots, modload.MainModules.ModRoot(m))
				}
				var plural string
				if len(modRoots) != 1 {
					plural = "s"
				}
				return errSet(fmt.Errorf("%s%s is not within module%s rooted at %s", q.pattern, absDetail, plural, strings.Join(modRoots, ", ")))
			}

	var pkgNotFoundErr error
	pkgNotFoundLongestPrefix := ""
	for _, mainModule := range MainModules.Versions() {
		modRoot := MainModules.ModRoot(mainModule)
		if modRoot != "" && str.HasFilePathPrefix(absDir, modRoot) && !strings.Contains(absDir[len(modRoot):], "@") {
			suffix := filepath.ToSlash(str.TrimFilePathPrefix(absDir, modRoot))
			if pkg, found := strings.CutPrefix(suffix, "vendor/"); found {
				if cfg.BuildMod != "vendor" {