these 2 derivations will be built:
  /nix/store/m0wqkcxggpamhd1zrg2njcdiznhsjbi3-nixos-test-driver-wal2json.drv
  /nix/store/60ykchn0n6gplxjyyf9d65d0vw6drd3c-vm-test-run-wal2json.drv