these 5 derivations will be built:
  /nix/store/2jnva7gmmrybbaq45n32nhd5j2mqax9k-clan-runtime.drv
  /nix/store/7z4az8pgw3zzdk2arh6nb1blmf6apv7r-closure-info.drv
  /nix/store/rdprl47v8fdwc3kvq1assgy74qw7mflq-clan-cli-source.drv
  /nix/store/mhgpp155ix4503lf2kdipq8gr9cxgvgw-clan-cli.drv
  /nix/store/fmr49px412l2fjawh23lzqrvq0i6p0fa-check-vars.drv