these 5 derivations will be built:
  /nix/store/8d30qybdjmb14r473majjp434hivrzsv-clan-runtime.drv
  /nix/store/zl7wcp8l62f5hjf6l7z44c08ssxyrzsl-closure-info.drv
  /nix/store/wz0r2wwrsw5s2jcn906d4f9i9mg5lncd-clan-cli-source.drv
  /nix/store/zvzibcgqx8j9q4mcc0rrp7f3nrirb4cp-clan-cli.drv
  /nix/store/vw6yj5mpfikm2wjim23p0cqr39x6cv2k-check-vars.drv
error: path '/nix/store/nz83337lh8cp48gvx3am3si8k8fpfms5-check-vars' is not valid
error: Cannot build '/nix/store/vw6yj5mpfikm2wjim23p0cqr39x6cv2k-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nz83337lh8cp48gvx3am3si8k8fpfms5-check-vars