these 3 derivations will be built:
  /nix/store/0z0p0vg8nqnni2kgrhviiipgpb3hl3dx-serde_json-1.0.154.drv
  /nix/store/6gdxqz636lx1k0ffm5inx2c52l6lw24n-cargo-vendor-dir.drv
  /nix/store/jlr20cfjha59kkf2jqqy9drr948xjliw-citiesapp-frontend.drv