charmcraft pack -o fails: FileNotFoundError

[barrettj12]

Bug Description

charmcraft pack does not seem to work when provided with the -o option to control the output directory. It fails with the following cryptic message: charmcraft internal error: FileNotFoundError(2, 'No such file or directory').

To Reproduce

1. Checkout https://github.com/juju/juju
2. Run charmcraft pack -p ./testcharms/charms/lxd-profile -o ./testcharms/charms

Environment

OS: Ubuntu 22.04.5 LTS
Charmcraft 3.2.1 installed from snap

charmcraft.yaml

type: "charm"
bases:
  - build-on:
      - name: "ubuntu"
        channel: "20.04"
        architectures: ["amd64", "arm64"]
    run-on:
      - name: "ubuntu"
        channel: "22.04"
        architectures:
          - amd64
          - arm64
          - s390x
      - name: "ubuntu"
        channel: "20.04"
        architectures:
          - amd64
          - arm64
          - s390x
      - name: "ubuntu"
        channel: "18.04"
        architectures:
          - amd64
          - arm64
          - s390x
      - name: "ubuntu"
        channel: "16.04"
        architectures:
          - amd64
          - arm64
          - s390x
parts:
  tiny-bash:
    plugin: dump
    source: .
    prime:
      - README
      - config.yaml
      - hooks
      - icon.svg
      - lxd-profile.yaml
      - metadata.yaml

Relevant log output

$ charmcraft pack -p ./testcharms/charms/lxd-profile -o ./testcharms/charms
WARNING: Charmcraft does not validate that charms with multiple given architectures are architecture agnostic.                                                                                                       
charmcraft internal error: FileNotFoundError(2, 'No such file or directory')                              
Failed to execute charmcraft in instance.                                                                 
Full execution log: '/home/jordan/.local/state/charmcraft/log/charmcraft-20240930-095541.119122.log'