these 2 derivations will be built:
  /nix/store/hj8jpxfam1bc64907cbc4qjpg3zv287n-nixos-test-driver-wal2json.drv
  /nix/store/8fbz3vbddkz23q1qlmiy8nmay578s1xr-vm-test-run-wal2json.drv