these 2 derivations will be built:
  /nix/store/ah222spv2fzqmibwiw20zyq63x0xwv9v-closure-info.drv
  /nix/store/9bxi4x7xg9yq03m4818qmy22bljm5rfk-check-vars.drv
error: path '/nix/store/ivf4za3y5xr0dssmal4ka30k9n313drl-check-vars' is not valid
error: Cannot build '/nix/store/9bxi4x7xg9yq03m4818qmy22bljm5rfk-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ivf4za3y5xr0dssmal4ka30k9n313drl-check-vars