these 2 derivations will be built:
  /nix/store/sfz8d997ivqdjcmrljn4dy0sw0y5q6h0-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/8j2v07ir22jaqv58mrs7jlkinzwkc8fa-vm-test-run-wrappers-regression-PSQL-1387.drv