these 5 derivations will be built:
  /nix/store/72k6jc190lww25r822fnin900hhs1vvq-closure-info.drv
  /nix/store/zpmb2sq2hvmk9ba0wwjrfwf80rhw62ng-clan-runtime.drv
  /nix/store/qsh42n5dv2s8g32mqwwbgnnxqynqp3g3-clan-cli-source.drv
  /nix/store/lkswr7n79rv4s8jidzyyvjmpdivgl2cz-clan-cli.drv
  /nix/store/p318h6i4cjs4zl2b2hkhk75r4zc7vm9m-check-vars.drv