message: Add url in the download failure
diff: @@ -12,7 +12,7 @@ import { parse as parseUrl } from 'url';
  import { getProxyAgent } from './proxy';
  import { NetworkSettingsProvider } from '../NetworkSettings';
  -export async function DownloadFile(description: string, eventStream: EventStream, networkSettingsProvider: NetworkSettingsProvider, url: string, fallbackUrl?: string) {
  +export async function DownloadFile(description: string, eventStream: EventStream, networkSettingsProvider: NetworkSettingsProvider, url: string, fallbackUrl?: string): Promise<Buffer> {
  eventStream.post(new DownloadStart(description));
  try {
  @@ -65,7 +65,7 @@ async function downloadFile(description: string, urlString: string, eventStream:
  else if (response.statusCode != 200) {
  // Download failed - print error message
  - eventStream.post(new DownloadFailure(`failed (error code '${response.statusCode}')`));
  + eventStream.post(new DownloadFailure(`Failed to download from ${url}. Error code '${response.statusCode}')`));
  return reject(new NestedError(response.statusCode.toString()));
  }
  