these 2 derivations will be built:
  /nix/store/iiyalhddsq2nvj4dwq8r5b0ypjfxfp2j-nixos-test-driver-pg_partman.drv
  /nix/store/jln7ib3zs282swi7drazj9iyrhz4fdhd-vm-test-run-pg_partman.drv