0s autopkgtest [15:49:39]: starting date and time: 2025-07-17 15:49:39+0000
  0s autopkgtest [15:49:39]: git checkout: 508d4a25 a-v-ssh wait_for_ssh: demote "ssh connection failed" to a debug message
  0s autopkgtest [15:49:39]: host juju-7f2275-prod-proposed-migration-environment-15; command line: /home/ubuntu/autopkgtest/runner/autopkgtest --output-dir /tmp/autopkgtest-work.4uvufnbq/out --timeout-copy=6000 --setup-commands /home/ubuntu/autopkgtest-cloud/worker-config-production/setup-canonical.sh --apt-pocket=proposed=src:gtk4 --apt-upgrade libreoffice --timeout-short=300 --timeout-copy=20000 --timeout-test=20000 --timeout-build=20000 --env=ADT_TEST_TRIGGERS=gtk4/4.14.5+ds-0ubuntu0.1 -- ssh -s /home/ubuntu/autopkgtest/ssh-setup/nova -- --flavor autopkgtest-cpu4-ram16-disk100-amd64 --security-groups autopkgtest-juju-7f2275-prod-proposed-migration-environment-15@sto01-14.secgroup --name adt-noble-amd64-libreoffice-20250717-102837-juju-7f2275-prod-proposed-migration-environment-15-eb27d0f1-29cd-4f39-a796-5eef07e6a17a --image adt/ubuntu-noble-amd64-server --keyname testbed-juju-7f2275-prod-proposed-migration-environment-15 --net-id=net_prod-autopkgtest-workers-amd64 -e TERM=linux --mirror=http://ftpmaster.internal/ubuntu/
  4s Creating nova instance adt-noble-amd64-libreoffice-20250717-102837-juju-7f2275-prod-proposed-migration-environment-15-eb27d0f1-29cd-4f39-a796-5eef07e6a17a from image adt/ubuntu-noble-amd64-server-20250717.img (UUID 59756cc8-7f2b-4a65-a20a-39beb6630a84)...
367s <VirtSubproc>: failure: timed out waiting for testbed to complete boot
367s autopkgtest [15:55:46]: ERROR: testbed failure: unexpected eof from the testbed