these 2 derivations will be built:
  /nix/store/n5if08i0kwpn4hx4l2jl9xrcylh6v3d8-dsh-source.drv
  /nix/store/m4m79lrjfc0axkkjr7k871qh1wkidv4z-dsh-0.1.1-rc.2.drv