these 2 derivations will be built:
  /nix/store/1g08a2dgrl61v4vwhrp5bpvqin54nqzk-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/wcp9swxqqz0xwn339fkivwx07iw3cfyn-vm-test-run-wrappers-regression-PSQL-1387.drv