===== Building live filesystems =====
Thu Jan 11 22:15:20 UTC 2018
ubuntu-server-amd64 on kapok.buildd starting at 2018-01-11 22:15:20
ubuntu-server-arm64 on magic.buildd starting at 2018-01-11 22:15:20
ubuntu-server-ppc64el on fisher01.buildd starting at 2018-01-11 22:15:20
Traceback (most recent call last):
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/build.py", line 738, in build_image_set_locked
    live_successful = run_live_builds(config)
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/livefs.py", line 370, in run_live_builds
    machine = live_builder(config, arch)
  File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/livefs.py", line 110, in live_builder
    raise UnknownArchitecture("No live filesystem builder known for %s" % arch)
UnknownArchitecture: No live filesystem builder known for s390x
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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:Uv3dxRV22/uOeHzbpd5tSOZWoIIYFARbAWGb2HBunVY.
Please contact your system administrator.
Add correct host key in /home/cdimage/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/cdimage/.ssh/known_hosts:42
  remove with:
  ssh-keygen -f "/home/cdimage/.ssh/known_hosts" -R magic.buildd
Password authentication is disabled to avoid man-in-the-middle attacks.
Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:3yPaVnH5KKeDoddVX5Gs1eZ6A01HbC1K87oPyCdEfYQ.
Please contact your system administrator.
Add correct host key in /home/cdimage/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/cdimage/.ssh/known_hosts:43
  remove with:
  ssh-keygen -f "/home/cdimage/.ssh/known_hosts" -R fisher01.buildd
Password authentication is disabled to avoid man-in-the-middle attacks.
Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
Permission denied (publickey,password).
Permission denied (publickey,password).
No valid suites to build for