these 2 derivations will be built:
  /nix/store/619xp1wmckhk9djk8awazh8pyfzrb7gf-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/5x87375sbk6k8j64d77qrv58lvbxzv18-vm-test-run-wrappers-regression-PSQL-1387.drv