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improve error message #1243

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improve error message#1243

Description

@beliaev-maksim
beliaev-maksim
opened on Jun 5, 2026

Check existing issues

  • I've verified that this bug isn't described by any existing issues.

Bug description

It looks like this is a fairly known issue. Can then the error message be intercepted and provide clear instructions for the user?

Steps to reproduce

https://github.com/canonical/roadmap.canonical.com/actions/runs/27006478647/job/79700988207?pr=47

Environment

https://github.com/canonical/roadmap.canonical.com/actions/runs/27006478647/job/79700988207?pr=47

rockcraft.yaml



Log output


2026-06-05 09:31:48.666 :: error: cannot fetch from archive: expected digest 38b3aedae753733a7db1cb2de6497529cb4350db19fbbb4a3ffb74d52564cae4, got 63da5fc9e01e7a0512e8adb530899ff1fbeb0c76d2909a0f34089e1d27c0687a
  2026-06-05 09:31:48.670 Failed to cut requested chisel slices: ca-certificates_data
  2026-06-05 09:31:48.670 Detailed information: :: error: cannot fetch from archive: expected digest 38b3aedae753733a7db1cb2de6497529cb4350db19fbbb4a3ffb74d52564cae4, got 63da5fc9e01e7a0512e8adb530899ff1fbeb0c76d2909a0f34089e1d27c0687a
  2026-06-05 09:31:48.675 Traceback (most recent call last):
  2026-06-05 09:31:48.675   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/packages/deb.py", line 849, in _unpack_stage_slices
  2026-06-05 09:31:48.675     process_run(
  2026-06-05 09:31:48.675   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/packages/deb.py", line 909, in process_run
  2026-06-05 09:31:48.675     os_utils.process_run(command, logger.debug, **kwargs)
  2026-06-05 09:31:48.675   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/utils/os_utils.py", line 342, in process_run
  2026-06-05 09:31:48.675     raise subprocess.CalledProcessError(ret, command)
  2026-06-05 09:31:48.675 subprocess.CalledProcessError: Command '['chisel', 'cut', '--ignore=unmaintained', '--ignore=unstable', '--root=/root/parts/fastapi-framework/runtime/install', 'ca-certificates_data']' returned non-zero exit status 1.
  2026-06-05 09:31:48.675 
  2026-06-05 09:31:48.676 The above exception was the direct cause of the following exception:
  2026-06-05 09:31:48.676 Traceback (most recent call last):
  2026-06-05 09:31:48.676   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/services/lifecycle.py", line 355, in run
  2026-06-05 09:31:48.676     self._exec(actions)
  2026-06-05 09:31:48.676   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/services/lifecycle.py", line 379, in _exec
  2026-06-05 09:31:48.677     aex.execute(action, stdout=stream, stderr=stream)
  2026-06-05 09:31:48.677   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/executor.py", line 360, in execute
  2026-06-05 09:31:48.677     self._executor.execute(actions, stdout=stdout, stderr=stderr)
  2026-06-05 09:31:48.677   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/executor.py", line 160, in execute
  2026-06-05 09:31:48.677     self._run_action(act, stdout=stdout, stderr=stderr)
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/executor.py", line 253, in _run_action
  2026-06-05 09:31:48.678     handler.run_action(action, stdout=stdout, stderr=stderr)
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/part_handler.py", line 313, in run_action
  2026-06-05 09:31:48.678     state = handler(step_info, stdout=stdout, stderr=stderr)
  2026-06-05 09:31:48.678             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/part_handler.py", line 456, in _run_build
  2026-06-05 09:31:48.678     self._unpack_stage_packages()
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/executor/part_handler.py", line 1329, in _unpack_stage_packages
  2026-06-05 09:31:48.678     packages.Repository.unpack_stage_packages(
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/packages/deb.py", line 798, in unpack_stage_packages
  2026-06-05 09:31:48.678     cls._unpack_stage_slices(
  2026-06-05 09:31:48.678   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_parts/packages/deb.py", line 861, in _unpack_stage_slices
  2026-06-05 09:31:48.678     raise errors.ChiselError(
  2026-06-05 09:31:48.678 craft_parts.packages.errors.ChiselError: Failed to cut requested chisel slices: ca-certificates_data
  2026-06-05 09:31:48.679 :: error: cannot fetch from archive: expected digest 38b3aedae753733a7db1cb2de6497529cb4350db19fbbb4a3ffb74d52564cae4, got 63da5fc9e01e7a0512e8adb530899ff1fbeb0c76d2909a0f34089e1d27c0687a
  2026-06-05 09:31:48.820 Emitter: Resuming control of the terminal
  2026-06-05 09:31:48.821 Executing in container: lxc --project rockcraft exec local:rockcraft-roadmap-web-rock-amd64-8137775 -- env CRAFT_MANAGED_MODE=1 ROCKCRAFT_DEBUG=False ROCKCRAFT_LXD_REMOTE=local ROCKCRAFT_LAUNCHPAD_INSTANCE=production ROCKCRAFT_ENABLE_EXPERIMENTAL_EXTENSIONS=true DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true DEBIAN_PRIORITY=critical test -f /tmp/rockcraft.log
  2026-06-05 09:31:48.937 Executing on host: lxc --project rockcraft file pull local:rockcraft-roadmap-web-rock-amd64-8137775/tmp/rockcraft.log /home/runner/tmpf1kga0c0.tmp-craft/tmpfemjki9z
  2026-06-05 09:31:49.033 Logs retrieved from managed instance:
  2026-06-05 09:31:49.034 Executing on host: lxc --project rockcraft config device show local:rockcraft-roadmap-web-rock-amd64-8137775
  2026-06-05 09:31:49.127 Executing on host: lxc --project rockcraft config device remove local:rockcraft-roadmap-web-rock-amd64-8137775 disk-/root/project
  2026-06-05 09:31:49.353 Executing on host: lxc --project rockcraft config device remove local:rockcraft-roadmap-web-rock-amd64-8137775 disk-/tmp/craft-state
  2026-06-05 09:31:49.450 Executing on host: lxc --project rockcraft stop local:rockcraft-roadmap-web-rock-amd64-8137775
  2026-06-05 09:31:53.324 Executing on host: lxc --project rockcraft list local: --format=yaml
  2026-06-05 09:31:53.421 Executing on host: lxc --project rockcraft config set local:rockcraft-roadmap-web-rock-amd64-8137775 user.craft_providers.status FINISHED
  2026-06-05 09:31:53.527 Failed to run rockcraft in instance
  2026-06-05 09:31:53.534 Traceback (most recent call last):
  2026-06-05 09:31:53.534   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/services/provider.py", line 587, in run_managed
  2026-06-05 09:31:53.534     instance.execute_run(  # pyright: ignore[reportUnknownMemberType,reportUnknownVariableType]
  2026-06-05 09:31:53.534   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_providers/lxd/lxd_instance.py", line 279, in execute_run
  2026-06-05 09:31:53.534     return self.lxc.exec(
  2026-06-05 09:31:53.534            ^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_providers/lxd/lxc.py", line 536, in exec
  2026-06-05 09:31:53.535     return runner(final_cmd, timeout=timeout, check=check, **kwargs)
  2026-06-05 09:31:53.535            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/current/usr/lib/python3.12/subprocess.py", line 571, in run
  2026-06-05 09:31:53.535     raise CalledProcessError(retcode, process.args,
  2026-06-05 09:31:53.535 subprocess.CalledProcessError: Command '['lxc', '--project', 'rockcraft', 'exec', 'local:rockcraft-roadmap-web-rock-amd64-8137775', '--cwd', '/root/project', '--', 'env', 'CRAFT_MANAGED_MODE=1', 'ROCKCRAFT_DEBUG=False', 'ROCKCRAFT_LXD_REMOTE=local', 'ROCKCRAFT_LAUNCHPAD_INSTANCE=production', 'ROCKCRAFT_ENABLE_EXPERIMENTAL_EXTENSIONS=true', 'DEBIAN_FRONTEND=noninteractive', 'DEBCONF_NONINTERACTIVE_SEEN=true', 'DEBIAN_PRIORITY=critical', 'CRAFT_PLATFORM=amd64', 'CRAFT_VERBOSITY_LEVEL=TRACE', 'rockcraft', 'pack', '--verbosity', 'trace']' returned non-zero exit status 1.
  2026-06-05 09:31:53.535 
  2026-06-05 09:31:53.535 The above exception was the direct cause of the following exception:
  2026-06-05 09:31:53.535 Traceback (most recent call last):
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/application.py", line 693, in run
  2026-06-05 09:31:53.535     return_code = self._run_inner()
  2026-06-05 09:31:53.535                   ^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/application.py", line 670, in _run_inner
  2026-06-05 09:31:53.535     return_code = dispatcher.run() or os.EX_OK
  2026-06-05 09:31:53.535                   ^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_cli/dispatcher.py", line 576, in run
  2026-06-05 09:31:53.535     return self._loaded_command.run(self._parsed_command_args)
  2026-06-05 09:31:53.535            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/commands/base.py", line 222, in run
  2026-06-05 09:31:53.535     result = self._run(parsed_args, **kwargs) or result
  2026-06-05 09:31:53.535              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/commands/lifecycle.py", line 663, in _run
  2026-06-05 09:31:53.535     return super()._run(parsed_args=parsed_args, step_name=step_name)
  2026-06-05 09:31:53.535            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/commands/lifecycle.py", line 276, in _run
  2026-06-05 09:31:53.535     self._run_manager_for_build_plan(fetch_service_policy)
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/commands/lifecycle.py", line 123, in _run_manager_for_build_plan
  2026-06-05 09:31:53.535     provider.run_managed(build, bool(fetch_service_policy))
  2026-06-05 09:31:53.535   File "/snap/rockcraft/4543/lib/python3.12/site-packages/craft_application/services/provider.py", line 594, in run_managed
  2026-06-05 09:31:53.535     raise craft_providers.ProviderError(
  2026-06-05 09:31:53.535 craft_providers.errors.ProviderError: Failed to run rockcraft in instance
  2026-06-05 09:31:53.535 Full execution log: '/home/runner/.local/state/rockcraft/log/rockcraft-20260605-092918.306122.log'
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