{
  "scope": "Provisioning feasibility only; no performance samples",
  "podman": {
    "status": "unavailable",
    "version": "5.4.2",
    "oci_runtime": "crun 1.21",
    "image": "localhost/python:3.13.5-slim-bookworm",
    "storage_driver": "vfs",
    "initial_error": "command required for rootless mode with multiple IDs: exec: \"newuidmap\": executable file not found in $PATH",
    "attempt": "Started private single-UID/GID user and mount namespace API service; VFS storage with ignore_chown_errors=true, cgroups disabled, network none; packaged seccomp enabled. Imported the same Python image exported from Docker.",
    "probe_command": "/workspace/scratch/extra-runtimes/bin/podman --remote --url unix:///workspace/scratch/extra-runtimes/podman.sock run --rm --pull never --network none --cgroups disabled localhost/python:3.13.5-slim-bookworm python --version",
    "container_error": "crun: mount `devpts` to `dev/pts`: Invalid argument: OCI runtime error",
    "diagnosis": "Container creation fails in the fallback single-ID namespace; standard rootless setup requires privileged UID/GID mapping helpers not present in this environment. Further changes to isolation were not attempted.",
    "service_stopped": true
  },
  "kubernetes": {
    "status": "unavailable",
    "kind_version": "0.30.0",
    "node_image": "kindest/node:v1.34.0",
    "probe_command": "kind create cluster --name llm-backend-benchmark --image kindest/node:v1.34.0 --kubeconfig /workspace/scratch/extra-runtimes/kubeconfig --wait 180s --retain",
    "initial_error": "ip6tables v1.8.11 (legacy): can't initialize ip6tables table `filter': Table does not exist",
    "attempt": "Retried using an isolated IPv4 Docker bridge through KIND_EXPERIMENTAL_DOCKER_NETWORK; node container started, but kubelet repeatedly exited.",
    "kubelet_error": "failed to run Kubelet: failed to create kubelet: open /dev/kmsg: no such file or directory",
    "node_deleted": true,
    "network_deleted": true,
    "cleanup_note": "kind reported inability to lock /home/agent/.kube while deleting, but explicitly reported Deleted nodes; Docker inspection verified node absence and network deletion."
  },
  "preserved_artifacts": [
    "kind-create.txt",
    "kind-create-ipv4.txt",
    "kubernetes-kubelet-failure.txt",
    "podman-failure.txt"
  ],
  "host_changes": "No host packages, UID/GID mappings, sysctls, privileged mapping helpers, or security policy changed."
}