this derivation will be built:
  /nix/store/6ng8rwfgxwd80kzydxah71mknswi8n80-debian-12-generic-amd64-20261006-2623.qcow2.drv
building '/nix/store/15ydsdakym9bp7f36id4qqdy57yzm51j-debian-12-generic-amd64-20261006-2623.qcow2.drv'
debian-12-generic-amd64-20261006-2623.qcow2> structuredAttrs is enabled
debian-12-generic-amd64-20261006-2623.qcow2> 
debian-12-generic-amd64-20261006-2623.qcow2> trying https://cloud.debian.org/images/cloud/bookworm/20261006-2623/debian-12-generic-amd64-20261006-2623.qcow2
debian-12-generic-amd64-20261006-2623.qcow2>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
debian-12-generic-amd64-20261006-2623.qcow2>                                  Dload  Upload  Total   Spent   Left   Speed
debian-12-generic-amd64-20261006-2623.qcow2> 100    417 100    417   0      0    894      0                              0
debian-12-generic-amd64-20261006-2623.qcow2> 100 427.4M 100 427.4M   0      0 80.87M      0   00:05   00:05         84.77M

upload niks3: ok