these 2 derivations will be built:
  /nix/store/2lyrjjh8dsdphw2l584179r9h1gnyyqf-nixos-test-driver-timescaledb.drv
  /nix/store/qmdm87yqjqrmc6ww1slyacs7bjkrjrnd-vm-test-run-timescaledb.drv