these 2 derivations will be built:
  /nix/store/9xzzkbxnwr9wf6msacfc4dv5r65ddhgc-nixos-test-driver-timescaledb.drv
  /nix/store/vszn8zqhjlkzq3cbdpy3dnj2rnxqsqr8-vm-test-run-timescaledb.drv