these 2 derivations will be built:
  /nix/store/9an4npbq4na7lk64ipln78djg5a74r3p-closure-info.drv
  /nix/store/xs45bwnq2akfwf8ccbv6zbzsjiar7a73-check-vars.drv
error: path '/nix/store/w3ql9gxgv766r6qnw8kzhmvaj0bll848-check-vars' is not valid
error: Cannot build '/nix/store/xs45bwnq2akfwf8ccbv6zbzsjiar7a73-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/w3ql9gxgv766r6qnw8kzhmvaj0bll848-check-vars