these 2 derivations will be built:
  /nix/store/ciib9jhvb5lhnnyflxgk89ivrwb6nxyg-closure-info.drv
  /nix/store/vzbznsr1h8jhi722h8zqn5d46j3pn5kj-check-vars.drv
error: path '/nix/store/0x8ajfd0s3i06mf6r7l8lk9816fqpvk9-check-vars' is not valid
error: Cannot build '/nix/store/vzbznsr1h8jhi722h8zqn5d46j3pn5kj-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/0x8ajfd0s3i06mf6r7l8lk9816fqpvk9-check-vars