[Bug 1935955] [NEW] autopkgtest-build-lxd reports "Error: not found", hangs, and then crashes

[Utkarsh Gupta]

Public bug reported:

Hello,

Whislt using autopkgtest-build-lxd, I saw that the commands started to
hang even though the output has been generated and then crashes, for
example:

$ autopkgtest-build-lxd --help                          
Description:
  Create and start instances from images

Usage:
  lxc launch [<remote>:]<image> [<remote>:][<name>] [flags]

Examples:
  lxc launch ubuntu:18.04 u1

  lxc launch ubuntu:18.04 u1 < config.yaml
      Create and start the instance with configuration from config.yaml

Flags:
  -c, --config                Config key/value to apply to the new instance
      --console[="console"]   Immediately attach to the console
      --empty                 Create an empty instance
  -e, --ephemeral             Ephemeral instance
  -n, --network               Network name
      --no-profiles           Create the instance with no profiles applied
  -p, --profile               Profile to apply to the new instance
  -s, --storage               Storage pool name
      --target                Cluster member name
  -t, --type                  Instance type
      --vm                    Create a virtual machine

Global Flags:
      --debug         Show all debug messages
      --force-local   Force using the local unix socket
  -h, --help          Print help
      --project       Override the source project
  -q, --quiet         Don't show progress information
  -v, --verbose       Show all information messages
      --version       Print version number
Error: not found
Timed out waiting for container to boot
Error: not found

$ echo $?                       
1

So when trying to build an autopkgtest lxd container via `autopkgtest-
build-lxd ubuntu-daily:focal/amd64`, it hangs and then crashes.

Let me know if you need more information. TIA.

** Affects: autopkgtest (Ubuntu)
     Importance: Medium
         Status: Triaged

** Changed in: autopkgtest (Ubuntu)
   Importance: Undecided => Critical

** Changed in: autopkgtest (Ubuntu)
   Importance: Critical => Medium

** Changed in: autopkgtest (Ubuntu)
       Status: New => Triaged

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https://bugs.launchpad.net/bugs/1935955

Title:
  autopkgtest-build-lxd reports "Error: not found", hangs, and then
  crashes

Status in autopkgtest package in Ubuntu:
  Triaged

Bug description:
  Hello,

  Whislt using autopkgtest-build-lxd, I saw that the commands started to
  hang even though the output has been generated and then crashes, for
  example:

  $ autopkgtest-build-lxd --help                          
  Description:
    Create and start instances from images

  Usage:
    lxc launch [<remote>:]<image> [<remote>:][<name>] [flags]

  Examples:
    lxc launch ubuntu:18.04 u1

    lxc launch ubuntu:18.04 u1 < config.yaml
        Create and start the instance with configuration from config.yaml

  Flags:
    -c, --config                Config key/value to apply to the new instance
        --console[="console"]   Immediately attach to the console
        --empty                 Create an empty instance
    -e, --ephemeral             Ephemeral instance
    -n, --network               Network name
        --no-profiles           Create the instance with no profiles applied
    -p, --profile               Profile to apply to the new instance
    -s, --storage               Storage pool name
        --target                Cluster member name
    -t, --type                  Instance type
        --vm                    Create a virtual machine

  Global Flags:
        --debug         Show all debug messages
        --force-local   Force using the local unix socket
    -h, --help          Print help
        --project       Override the source project
    -q, --quiet         Don't show progress information
    -v, --verbose       Show all information messages
        --version       Print version number
  Error: not found
  Timed out waiting for container to boot
  Error: not found

  $ echo $?                       
  1

  So when trying to build an autopkgtest lxd container via `autopkgtest-
  build-lxd ubuntu-daily:focal/amd64`, it hangs and then crashes.

  Let me know if you need more information. TIA.

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