these 2 derivations will be built:
  /nix/store/rdvs78h3lacadypbcf023ry1a6ka7nh4-closure-info.drv
  /nix/store/13vwq9blv1fcprkbfsdpw0jlvj5kz7wc-check-vars.drv
error: path '/nix/store/4y85k7gsgd1n9vjgin75l8bsn6431d26-check-vars' is not valid
error: Cannot build '/nix/store/13vwq9blv1fcprkbfsdpw0jlvj5kz7wc-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/4y85k7gsgd1n9vjgin75l8bsn6431d26-check-vars