these 2 derivations will be built:
  /nix/store/p9jc2zcf3f9yiyn1zvxn8f4cw1wvvy3y-nixos-test-driver-timescaledb.drv
  /nix/store/03q4vqb2cw3vim8886fs6k00ndh0kw26-vm-test-run-timescaledb.drv