### Bug Description If the guest is mid-transaction when `shutdown -c` runs, the cancellation request is silently dropped: ``` Failed to set wall message, ignoring: Transaction for systemd-logind.service/start is destructive (systemd-tmpfiles-setup-dev-early.service has 'stop' job queued, but 'start' is included in transaction). Failed to talk to logind, shutdown hasn't been cancelled: ... ``` Eventually the instance stops, and every subsequent command fails: ``` Failed to read /etc/os-release. ... * Command exit code: 1 * Command standard error output: 'Error: Instance is not running\n' ``` Observed here: https://github.com/canonical/uv-sdk/actions/runs/40453360288/job/122020943457 ### To Reproduce It's not going to be reliable, but the linked job ran `sdkcraft pack` followed by `sdkcraft test`; it probably suffices to run `*craft pack` twice with the right timing. Or you could try running something like `lxc stop <INSTANCE> & *craft pack`. ### part yaml ```shell ``` ### Relevant log output ```shell Starting sdkcraft, version 0.0.post1.dev1+ga7b62e681 Logging execution to '/home/ubuntu/.local/state/sdkcraft/log/sdkcraft-20261027-053733.371705.log' Launching managed ubuntu 26.04 instance... Starting instance Starting sdkcraft, version 0.0.post1.dev1+ga7b62e681 Logging execution to '/tmp/sdkcraft.log' Initializing lifecycle Rust is installed on the system, skipping rustup Installing build-packages Skipping pull for uv (already ran) Skipping build for uv (already ran) Skipping stage for uv (already ran) Skipping prime for uv (already ran) Skipping pack (already ran) Already packed: uv_amd64_ubuntu@26.04.sdk Launching managed ubuntu 24.04 instance... Failed to set wall message, ignoring: Transaction for systemd-logind.service/start is destructive (systemd-tmpfiles-setup-dev-early.service has 'stop' job queued, but 'start' is included in transaction). Failed to talk to logind, shutdown hasn't been cancelled: Transaction for systemd-logind.service/start is destructive (systemd-binfmt.service has 'stop' job queued, but 'start' is included in transaction). Failed to read /etc/os-release. * Command that failed: 'lxc --project sdkcraft exec local:sdkcraft-uv-ubuntu-2404-amd64-774177-f08a4fc804f7880001a9 -- env CRAFT_MANAGED_MODE=1 SDKCRAFT_DEBUG=False SDKCRAFT_LXD_REMOTE=local SDKCRAFT_LAUNCHPAD_INSTANCE=production SDKCRAFT_IDLE_MINS=10 DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true DEBIAN_PRIORITY=critical cat /etc/os-release' * Command exit code: 1 * Command standard error output: 'Error: Instance is not running\n' Full execution log: '/home/ubuntu/.local/state/sdkcraft/log/sdkcraft-20261027-053733.371705.log' Error: Process completed with exit code 1. ```