these 2 derivations will be built:
  /nix/store/bjfrgxvg7hr0mxj6vc53qanc9sn3c92p-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/hbh2037ca772d2byy3hi48fxym5j5d68-vm-test-run-wrappers-regression-PSQL-1387.drv