these 5 derivations will be built:
  /nix/store/8d3dhw9hav79wm6a43z76a70pms61al4-clan-runtime.drv
  /nix/store/s04xj5590ylaib17b00f9cqjgvp6iijl-clan-cli-source.drv
  /nix/store/8yyza4fr9vw9gc04ykbzk9qzq8zywcry-clan-cli.drv
  /nix/store/npk024igkpj83abbvz8pi80ch77kr8kz-closure-info.drv
  /nix/store/7ni9jq508blifr2xb5ai9xrs8lpg837a-check-vars.drv
error: path '/nix/store/ccl9llplhwrd4j0k8fdflxb2z1ik8nms-check-vars' is not valid
error: Cannot build '/nix/store/7ni9jq508blifr2xb5ai9xrs8lpg837a-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ccl9llplhwrd4j0k8fdflxb2z1ik8nms-check-vars