these 2 derivations will be built:
  /nix/store/pmy9m6868c43c7a9c9900cxn7p7l7p0v-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/6k67jpj47xzxnrld2c15w8p281gfivqs-vm-test-run-wrappers-regression-PSQL-1387.drv