RPi 1 update error

RPi 1 update error.log

pi@raspberrypi:~ $ sudo rpi-update
 *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
 *** Performing self-update
 *** Relaunching after update
 *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
 *** We're running for the first time
 *** Backing up files (this will take a few minutes)
 *** Remove old firmware backup
 *** Backing up firmware
 *** Remove old modules backup
 *** Backing up modules 4.9.35+
#############################################################
This update bumps to rpi-4.14.y linux tree
Be aware there could be compatibility issues with some drivers
Discussion here:
https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=197689
##############################################################
 *** Downloading specific firmware revision (this will take a few minutes)
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   168    0   168    0     0    493      0 --:--:-- --:--:-- --:--:--   495
 64 55.6M   64 35.9M    0     0   401k      0  0:02:21  0:01:31  0:00:50  130kcurl: (18) transfer closed with 20564322 bytes remaining to read

gzip: stdin: unexpected end of file
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now