message: Type errors are niec
diff: @@ -326,7 +326,7 @@ const ENVIRONMENTS: EnvironmentProvider[] = [
  var dirs = config.emscriptenSearchDirs;
  var env_dir = process.env['EMSCRIPTEN'] as string|undefined;
  if (env_dir && dirs.indexOf(env_dir) == -1)
  - dirs = dirs.push(env_dir);
  + dirs.push(env_dir);
  const envs = await Promise.all(dirs.map(tryCreateEmscriptenEnvironment));
  return <Environment[]>envs.filter((e) => !!e);
  }
  