}

	if q.pattern == "all" {
		// If there is no main module, "all" is not meaningful.
		if !modload.HasModRoot() {
			return fmt.Errorf(`cannot match "all": %v`, modload.ErrNoModRoot)
		}
		if !versionOkForMainModule(q.version) {
			// TODO(bcmills): "all@none" seems like a totally reasonable way to
			// request that we remove all module requirements, leaving only the main

				// This module is being removed, so it will no longer be in the build list
				// (and thus will no longer match the pattern).
				return pathSet{}
			}

			if modload.MainModules.Contains(curM.Path) && !versionOkForMainModule(q.version) {
				if q.matchesPath(curM.Path) {
					return errSet(&modload.QueryMatchesMainModulesError{
						MainModules: []module.Version{curM},
						Pattern:     q.pattern,
						Query:       q.version,