these 2 derivations will be built:
  /nix/store/z3qakgqjwgnl9bza61471ajhf73fc9qz-nixos-test-driver-pg_hashids.drv
  /nix/store/ls6h09b4q4mraqvl4ccld67blwgmqn5s-vm-test-run-pg_hashids.drv