these 2 derivations will be built:
  /nix/store/l8l9j1j2277ny171a2q7abd05wr2i43x-nixos-test-driver-timescaledb.drv
  /nix/store/xx3s6k62ixlc1r9625ryl9i5kq85gkh2-vm-test-run-timescaledb.drv