these 4 derivations will be built:
  /nix/store/66mbzps7sxgirdmaaq1lzk3lqys5nb3a-clan-cli-source.drv
  /nix/store/dqx6cmxj5a467q9jhypk38sjfa3gfxas-clan-cli.drv
  /nix/store/sk5skmnmpfykvxmkwgqc9a8slg0hq7cr-closure-info.drv
  /nix/store/wriv9zfx8mdymn223g56kxiarvvifh15-check-vars.drv
error: path '/nix/store/b3p6c2gaqql8cs4gvn9xhc03lvp7lf54-check-vars' is not valid
error: Cannot build '/nix/store/wriv9zfx8mdymn223g56kxiarvvifh15-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/b3p6c2gaqql8cs4gvn9xhc03lvp7lf54-check-vars