these 4 derivations will be built:
  /nix/store/nj0d4brcjpghg41r0dpy0razachywhrz-system-manager.drv
  /nix/store/mdn6w8gf45jq2zbgz8l2k2v78aklx8dc-test-script.py.drv
  /nix/store/nh1y6s53s3f5wy242bhjk8dm27q5wmp5-closure-info.drv
  /nix/store/qkh9s3cxdg9hnm7w131b3vgm8gpni876-container-test-debian-13-existing-files.drv