these 2 derivations will be built:
  /nix/store/xkfn2vs7ra5xdz5i3r8xsw0rvhbsi6mv-harmonia-deps-3.2.0.drv
  /nix/store/rfkwm0fy7rlfvllp5lbhgg77dcbb32vk-harmonia-3.2.0.drv