these 2 derivations will be built:
  /nix/store/0yfng6xqphca23zar8drd6aim086v5kb-fx-0.0.16.drv
  /nix/store/vn1wp2hm7sjvk60g277lbz500zgn5n9m-check-fx.drv
this path will be fetched (86.8 MiB download, 398.0 MiB unpacked):
  /nix/store/mrjlaq4kxr7h00kiqahk17wh43d3s95r-zig-0.17.1