these 4 derivations will be built:
  /nix/store/7n9biyfbvw7ic9vng7v87diidq15rrab-clan-cli-source.drv
  /nix/store/g93k5yk7h39jzi75cllznhi4hdays17b-clan-cli.drv
  /nix/store/ilpf4bhnhm9qv08ild9ia3sq0m5bh97n-closure-info.drv
  /nix/store/gnskqdyqwaa0vq9gla825m24y0cjpb0s-check-vars.drv
error: path '/nix/store/9dw5xs2100c2f7h1mhdzmdpkax151chf-check-vars' is not valid
error: Cannot build '/nix/store/gnskqdyqwaa0vq9gla825m24y0cjpb0s-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/9dw5xs2100c2f7h1mhdzmdpkax151chf-check-vars