these 2 derivations will be built:
  /nix/store/9zh655a0n2sw1bcg65fb8s594w8kr3cr-reflections_subway_demo.zip.drv
  /nix/store/9izaii8pvxvvni61f7i9ny3qplfxpsii-ue4demos-reflections_subway.drv
building '/nix/store/vb9vddrym0b3xvh62cmhcfp9mjidw366-reflections_subway_demo.zip.drv'
reflections_subway_demo.zip> 
reflections_subway_demo.zip> trying https://ludios.org/mirror/ue4demos/reflections_subway_demo.zip
reflections_subway_demo.zip>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
reflections_subway_demo.zip>                                  Dload  Upload   Total   Spent    Left  Speed
reflections_subway_demo.zip> 100  158M  100  158M    0     0  30.3M      0  0:00:05  0:00:05 --:--:-- 21.7M
building '/nix/store/9izaii8pvxvvni61f7i9ny3qplfxpsii-ue4demos-reflections_subway.drv'
ue4demos-reflections_subway> Archive:  /nix/store/6a86fr703869qyw6gbblw0zfwgki3kxs-reflections_subway_demo.zip
ue4demos-reflections_subway>    creating: Reflections Subway Demo/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Engine/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Engine/Binaries/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Engine/Binaries/Linux/
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/Reflections  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicudata.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicui18n.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicuio.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicule.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libiculx.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicutu.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libicuuc.so  
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Engine/Binaries/Linux/libopenal.so.1  
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Reflections/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Reflections/Content/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Reflections/Content/Paks/
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Reflections/Content/Paks/Reflections-LinuxNoEditor.pak  
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Reflections/Saved/
ue4demos-reflections_subway>    creating: Reflections Subway Demo/Reflections/Saved/Config/
ue4demos-reflections_subway>   inflating: Reflections Subway Demo/Reflections/Saved/Config/controller.vdf  
ue4demos-reflections_subway> Reflections Subway Demo

upload niks3: ok