these 3 derivations will be built:
  /nix/store/cryihrk147y5yplfgaaxbw6nhsrms1xb-lean-ctx-3.11.2-vendor.drv
  /nix/store/hx0997212agvpnj4m79cxfwi3vi2vm81-lean-ctx-3.11.2.drv
  /nix/store/zh57ikwl2c2qvdy5qdfi49zqwnkqabwa-check-lean-ctx.drv