message: switch from map to forEach
diff: @@ -98,7 +98,7 @@ export class IndexBuilder {
  async build(): Promise<{ scheduler: Scheduler }> {
  const scheduler = new Scheduler({ logger: this.logger });
  - Object.keys(this.collators).map(type => {
  + Object.keys(this.collators).forEach(type => {
  scheduler.addToSchedule(async () => {
  // Collate, Decorate, Index.
  const decorators: DocumentDecorator[] = (
  