these 2 derivations will be built:
  /nix/store/r1cxyb6j1w2pfbcxapbkh7c60pdn0flh-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/zkcj0xy09fr6ga0mihg1hyh5j432bcin-vm-test-run-wrappers-regression-PSQL-1387.drv