these 2 derivations will be built:
  /nix/store/vjv904cp17hs6wzy9qyy8lgjjbzj16g5-closure-info.drv
  /nix/store/hsr3blcyms9q8ggh703p2did7zmz0nzp-check-vars.drv
error: path '/nix/store/fvmf7xf5bq08nm4m9h3cwwf3nc60c562-check-vars' is not valid
error: Cannot build '/nix/store/hsr3blcyms9q8ggh703p2did7zmz0nzp-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/fvmf7xf5bq08nm4m9h3cwwf3nc60c562-check-vars