class DeviceManager {
constructor() {
    this.deviceList = [];
}

async buildDevices() {
    const deviceNames = await this.getDeviceNames();

    deviceNames.forEach(async name => {
      const device = new Device(name);
      await device.build();
      console.log(device); // This outputs the device as expected!
      this.deviceList.push(device); // However, the device doesn't end up in this array?
    });
  }
}