these 2 derivations will be built:
  /nix/store/bmj4hwhi4kd0jgp1m3110d52dlx8fkm9-closure-info.drv
  /nix/store/1hc042lkvf8cdbqa7g6rgwshg522xf76-check-vars.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/b1yrqmjwjw858f1582pzhsqj1sssfqkz-clan-cli
error: path '/nix/store/zf06dsaz4nzn0yfhc553s04v39vmc0df-check-vars' is not valid
error: Cannot build '/nix/store/1hc042lkvf8cdbqa7g6rgwshg522xf76-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zf06dsaz4nzn0yfhc553s04v39vmc0df-check-vars