22 def get_free_disk_space(failures):  argument
34   failures.append('get_free_disk_space: OS %s not supported.' % os.name)
38 def get_num_cpus(failures):  argument
47     failures.append('get_num_cpus')
51 def get_device_info(args, failures):  argument
81       failures.append('device_status')
108       failures.append(k)
112       failures.append('Device %s denylisted' % v['serial'])
118   failures = []
124   host_info['num_cpus'] = get_num_cpus(failures)
125   host_info['free_disk_space'] = get_free_disk_space(failures)
130   host_info['devices'] = get_device_info(args, failures)
134       'failures': failures,
138   if len(failures) != 0: