these 2 derivations will be built:
  /nix/store/ig29zdays6f0s584sl79d578h4g1xw0r-nixos-test-driver-timescaledb.drv
  /nix/store/l8ihnwbbaf9hwmm5cw9lv6bqsdhk91g6-vm-test-run-timescaledb.drv