these 2 derivations will be built:
  /nix/store/df8ki4fpgf91hvg3khj0pjfy7y9hpdzf-nixos-test-driver-pg_graphql.drv
  /nix/store/g5jvxcxkrbjwhlgf28fazi60y5kcdxv2-vm-test-run-pg_graphql.drv