these 2 derivations will be built:
  /nix/store/xjsa4gncck4jvhzrifrvbdjgw1kcydn6-closure-info.drv
  /nix/store/r8a9lgihfnzrn0xw7l6xxrzpk7rp2zhi-check-vars.drv
error: path '/nix/store/iil59n3pgcvl7zxic6v6z47w3gc97dgi-check-vars' is not valid
error: Cannot build '/nix/store/r8a9lgihfnzrn0xw7l6xxrzpk7rp2zhi-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/iil59n3pgcvl7zxic6v6z47w3gc97dgi-check-vars