code: func (crc ContainerRuntimeCheck) Check() (warnings, errorList []error) {
  	klog.V(1).Infoln("validating the container runtime")
  	if err := crc.runtime.IsRunning(); err != nil {
  		errorList = append(errorList, err)
  	}
  	return warnings, errorList
  }
docs: // Check validates the container runtime