Snapcraft segmentation fault with multipass

Snapcraft segmentation fault with multipass

### https://forum.snapcraft.io/t/snapcraft-segmentation-fault-with-multipass/19765

### my snapcraft.yml

name: myapp
base: core18
version: '0.1'
summary: myapp asdfasdfasdf
description: |
  myapp  asdfasdfasdf


grade: devel
confinement: devmode 

apps:
  myapp:
    command: myapp
    plugs:
      - network
      - network-bind
      - home
      - desktop
      - desktop-legacy
    extensions: [gnome-3-34]

parts:

  lib:
    plugin: nil
    source: .
    override-build: |
      apt-get install software-properties-common -yu
      echo "asdfasdf 1"
      add-apt-repository -yu ppa:ubuntu-toolchain-r/test
      echo "asdfasdf 2"
      touch lib.sh
    stage-packages:
      - libnss3
      - libnspr4
      # need newer lib, core20 does not support gnome extension yet, therefore using core18 and staging newer std lib
      # - libstdc++6

  exe:
    plugin: nil
    source: .
    after: [lib]
    override-build: |
      touch myapp
      chmod +x myapp
      cp myapp $SNAPCRAFT_PART_INSTALL/.