these 4 derivations will be built:
  /nix/store/cjm9kdylcz5r0nmqj0s1v2jd6yx1l140-source.drv
  /nix/store/1fxhbib093glxc333gap2i01ypz6p21d-ctx-1.1.0-vendor-staging.drv
  /nix/store/kx2m33a2jdffffrpn0xyqcc48icv0cim-ctx-1.1.0-vendor.drv
  /nix/store/kdlkp1bfwp88sc0viv2w4mxz5i7f65q8-ctx-1.1.0.drv