these 5 derivations will be built:
  /nix/store/2585i4gkn9dsjl0y4dbs1x4zjw7gp024-closure-info.drv
  /nix/store/z0y1l9hbialcbksnqjzq8z5qz4npa8vk-clan-runtime.drv
  /nix/store/6fgq744wngi7n4pfwcg90c2fdfngbgma-clan-cli-source.drv
  /nix/store/gg4mbl9i9h2k6i5wssfcm33lwsc8sj3s-clan-cli.drv
  /nix/store/q4hdkckdqc557g2lwfzc8ml6psgrdsc0-check-vars.drv
this path will be fetched (0.0 KiB download, 82.7 KiB unpacked):
  /nix/store/0kvy9bg1kx8sagddkjg6fbcl7rlv51iq-nix-2.31.5-dev
error: path '/nix/store/019hhyg19brmaniy2imy937mrnjhqgik-check-vars' is not valid
error: Cannot build '/nix/store/q4hdkckdqc557g2lwfzc8ml6psgrdsc0-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/019hhyg19brmaniy2imy937mrnjhqgik-check-vars