### Bug Description Some of our spread tests are flaky. Example failure: https://github.com/snapcore/snapcraft/actions/runs/4961379589/jobs/8878193699?pr=4128 They seem to be sometimes timing out, but not reliably so ### To Reproduce 1. Create a PR with any change. 2. Run the spread tests 3. If they all succeed, try re-running ### Environment CI ### snapcraft.yaml ```shell N/A ``` ### Relevant log output ```shell Loading plugin module 'nil' with sys.path ['/root/project/snap/plugins', '/snap/snapcraft/x1/bin', '/snap/snapcraft/x1/usr/lib/python38.zip', '/snap/snapcraft/x1/usr/lib/python3.8', '/snap/snapcraft/x1/usr/lib/python3.8/lib-dynload', '/snap/snapcraft/x1/lib/python3.8/site-packages'] Setting up part 'base' with plugin 'nil' and properties {'plugin': 'nil', 'stage': [], 'prime': []}. Requested build-packages: [] Requested build-packages already installed: [] snapcraft is running in a docker or podman (OCI) container Preparing to pull base Pulling base snapcraft is running as a snap True, SNAP_NAME set to 'snapcraft' + snapcraftctl pull 2023-05-12 17:24:11.077 Starting Snapcraft 7.3.1.post80+gitbe1f2db6 2023-05-12 17:24:11.077 Logging execution to '/root/.local/state/snapcraft/log/snapcraft-20230512-172411.075965.log' 2023-05-12 17:24:11.079 lifecycle command: 'pull', arguments: Namespace(bind_ssh=False, build_for=None, debug=False, destructive_mode=False, enable_developer_debug=False, enable_experimental_extensions=False, enable_experimental_plugins=False, enable_experimental_target_arch=False, enable_experimental_ua_services=False, enable_manifest=True, http_proxy=None, https_proxy=None, manifest_image_information=None, parts=[], provider=None, shell=False, shell_after=False, target_arch=None, ua_token=None, use_lxd=True) 2023-05-12 17:24:11.079 command: pull, arguments: Namespace(bind_ssh=False, build_for=None, debug=False, destructive_mode=False, enable_developer_debug=False, enable_experimental_extensions=False, enable_experimental_plugins=False, enable_experimental_target_arch=False, enable_experimental_ua_services=False, enable_manifest=True, http_proxy=None, https_proxy=None, manifest_image_information=None, parts=[], provider=None, shell=False, shell_after=False, target_arch=None, ua_token=None, use_lxd=True) + /snap/bin/lxc start snapcraft-core18 + MATCH VERSION_CODENAME=bionic + /snap/bin/lxc exec snapcraft-core18 cat /etc/os-release + /snap/bin/lxc stop snapcraft-core18 Error: Failed shutting down instance, status is "Running": context deadline exceeded Try `lxc info --show-log snapcraft-core18` for more info ----- . 2023-05-12 17:36:43 Restoring google:ubuntu-18.04-64:tests/spread/providers/lxd-type-base (may121721-738851)... ``` ### Additional context _No response_