these 2 derivations will be built:
  /nix/store/s7qav81l592gh58sshlxxbmyfiw1zd8j-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/a35kbpl8lcqryk6549bfwx6wlpvbwmq0-vm-test-run-wrappers-regression-PSQL-1387.drv