$ spack -d buildcache check -s /<somehash>
==> [2023-10-10-17:55:15.829587] Imported buildcache from built-in commands
==> [2023-10-10-17:55:15.832476] Imported buildcache from built-in commands
==> [2023-10-10-17:55:15.833612] Reading config from file /home/stesachs/spack/etc/spack/defaults/config.yaml
Traceback (most recent call last):
  File "/home/stesachs/spack/bin/spack", line 52, in <module>
    sys.exit(main())
  File "/home/stesachs/spack/lib/spack/spack_installable/main.py", line 37, in main
    sys.exit(spack.main.main(argv))
  File "/home/stesachs/spack/lib/spack/spack/main.py", line 1022, in main
    return _main(argv)
  File "/home/stesachs/spack/lib/spack/spack/main.py", line 977, in _main
    return finish_parse_and_run(parser, cmd_name, env_format_error)
  File "/home/stesachs/spack/lib/spack/spack/main.py", line 1005, in finish_parse_and_run
    return _invoke_command(command, parser, args, unknown)
  File "/home/stesachs/spack/lib/spack/spack/main.py", line 646, in _invoke_command
    return_val = command(parser, args)
  File "/home/stesachs/spack/lib/spack/spack/cmd/buildcache.py", line 638, in buildcache
    args.func(args)
  File "/home/stesachs/spack/lib/spack/spack/cmd/buildcache.py", line 432, in check_fn
    specs = _matching_specs(specs, specs)
TypeError: _matching_specs() takes 1 positional argument but 2 were given