these 2 derivations will be built:
  /nix/store/rz71qs5dkivfkw7k6lqi35nxqvvkb76x-closure-info.drv
  /nix/store/vf2gbajh7v9mlbp58bxal9b6c88c6s2g-check-vars.drv
error: path '/nix/store/bgfia7qv9y1x3szk8iw7d4vckqziqiqx-check-vars' is not valid
error: Cannot build '/nix/store/vf2gbajh7v9mlbp58bxal9b6c88c6s2g-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bgfia7qv9y1x3szk8iw7d4vckqziqiqx-check-vars