these 4 derivations will be built:
  /nix/store/a54k7kj2cyp87irh6hal84dr0nm8sgyy-system-manager.drv
  /nix/store/a2bqragw5lzj1nl6ylb328pz0zkwsysf-closure-info.drv
  /nix/store/sygp8h8f8a2wdj04a62flvziirjxp1vc-test-script.py.drv
  /nix/store/jfc6js9hqvn1pw1sd8yj096i1ng75mr8-container-test-debian-13-existing-files.drv