these 2 derivations will be built:
  /nix/store/87kc3xrdsy8fv30rg9192wn14hrdzpl4-nixos-test-driver-pg_partman.drv
  /nix/store/0dpk25dv8m9kd796vnsnfss8s85yq8mv-vm-test-run-pg_partman.drv