these 2 derivations will be built:
  /nix/store/1xal2y5jyaim6gsvjigk9hhmfw0vbxya-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/fbv0hblp4p2zm544ar6dbfxlvkpjv0lc-vm-test-run-wrappers-regression-PSQL-1387.drv