these 2 derivations will be built:
  /nix/store/n2mz34wpabkh11gg9mq89a7zfirlc5jp-closure-info.drv
  /nix/store/gq9g5vkww22rxfalxv5bb0jjr44ns51x-check-vars.drv
this path will be fetched (0.0 KiB download, 4.1 MiB unpacked):
  /nix/store/z8m1nbb264v6zy99nbk8s3bdr2za3hnp-clan-cli
error: path '/nix/store/3wh3r0kibzzddx5nnfy73jq50ywpab88-check-vars' is not valid
error: Cannot build '/nix/store/gq9g5vkww22rxfalxv5bb0jjr44ns51x-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3wh3r0kibzzddx5nnfy73jq50ywpab88-check-vars