these 5 derivations will be built:
  /nix/store/z0y1l9hbialcbksnqjzq8z5qz4npa8vk-clan-runtime.drv
  /nix/store/2ny80ijx8npidsrcdh5d4n7l0vba9ibk-clan-cli-source.drv
  /nix/store/vkks9pd4ry01ivxx6qky7wkgd1n7sqwq-closure-info.drv
  /nix/store/za16yblrdal12scn9cwlclsgbgzd8z6i-clan-cli.drv
  /nix/store/f20k9mndyw8afnmxjv2m6q15yv22rb04-check-vars.drv
error: path '/nix/store/f1v780yhidii6ldqrm6a57scj1qvj84z-check-vars' is not valid
error: Cannot build '/nix/store/f20k9mndyw8afnmxjv2m6q15yv22rb04-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/f1v780yhidii6ldqrm6a57scj1qvj84z-check-vars