these 2 derivations will be built:
  /nix/store/syhmyg8hqiw0avcnhpss0nmd8ybp3pdl-closure-info.drv
  /nix/store/5xqp1n2svbab35vk021v0y9h9ldxbal6-check-vars.drv
error: path '/nix/store/i7xlpcy55kdnrwng6yqhbg32ksxzqpqv-check-vars' is not valid
error: Cannot build '/nix/store/5xqp1n2svbab35vk021v0y9h9ldxbal6-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/i7xlpcy55kdnrwng6yqhbg32ksxzqpqv-check-vars