pdm sync fails with version >= 1.12

[pasmon]

• I have searched the issue tracker and believe that this is not a duplicate.

pdm-1.12-issue.zip

Steps to reproduce

Use latest version of pdm and run:
pdm sync -v --no-self --no-editable --dev --group lint

Actual behavior

Using pdm version >= 1.12 causes pdm sync to fail.

What's weird is also this text which doesn't appear with version 1.11.3:
Lock file hash doesn't match pyproject.toml, packages may be outdated

Expected behavior

pdm sync should work as it did with pdm version <= 1.11.3.

Environment Information

PDM version:        1.12.2
Python Interpreter: /usr/local/bin/python (3.8)
Project Root:       /builds/work/ansible
Project Packages:   /builds/work/ansible/__pypackages__/3.8

[frostming]

It didn't fail, just a warning, run pdm lock --refresh to update the hashes.

For the auto update check failure, have you configured any index server in pip config?

[pasmon]

Got rid of the lock hash warning with your instructions, thanks!

We are running the pdm sync in GitLab CI and the job does fail to some pdm operation before we get to the actual linting part which is the purpose of the job:

Traceback (most recent call last):
  File "/usr/local/bin/pdm", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.8/site-packages/pdm/core.py", line 219, in main
    return Core().main(args)
  File "/usr/local/lib/python3.8/site-packages/pdm/core.py", line 173, in main
    check_update(options.project)
  File "/usr/local/lib/python3.8/site-packages/pdm/cli/actions.py", line 808, in check_update
    latest_version = parse_version(get_latest_version(project))
  File "/usr/local/lib/python3.8/site-packages/pdm/cli/actions.py", line 788, in get_latest_version
    latest_version = str(candidate.best_candidate.version)
AttributeError: 'NoneType' object has no attribute 'version'
Uploading artifacts...
00:02
log.txt: found 1 matching files                    
Uploading artifacts to coordinator... ok            id=8542365 responseStatus=201 Created token=NNCff1b-
ERROR: Job failed: exit code 1

This doesn't happen with the 1.11.3 version.

Not sure what is meant with "auto update check failure", but we haven't configured any index server in pip config. We do install pdm from our internal PyPI mirror with pip.

[frostming]

pdm config check_update false to turn it off.