these 6 derivations will be built:
  /nix/store/a9gn45rbq94whxicxmlb3wl05wk74717-cargo-package-actix-files-0.7.3.drv
  /nix/store/6v8b7qwf0niyz3rbkz89v33jqz3vwvc3-vendor-registry.drv
  /nix/store/7b9qbkz65xp4bsbgaipabmxqry5x4nxl-vendor-cargo-deps.drv
  /nix/store/lr1wjngm0ccprdbp3nl12ccfsbgwxj9y-source.drv
  /nix/store/kk9ibj8rz8hvivg5cjnyrkqjdfrfdwbn-harmonia-deps-3.3.0.drv
  /nix/store/wpmvdmzidffqd0ijdc585ccshrfbg4n8-harmonia-3.3.0.drv