these 2 derivations will be built:
  /nix/store/f49cvxsa656nqvgb9rx7nvfw4nnxypza-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/837a76y5fns84s2qmvmsai4yd3xw1agq-vm-test-run-wrappers-regression-PSQL-1387.drv