this derivation will be built:
  /nix/store/jrq533kwqsx49hgvmy4r20f29j05cqif-run-sigma-vm-on-aarch64-darwin.drv
building '/nix/store/jrq533kwqsx49hgvmy4r20f29j05cqif-run-sigma-vm-on-aarch64-darwin.drv' on 'ssh-ng://builder@build04.clan.lol'
building '/nix/store/jrq533kwqsx49hgvmy4r20f29j05cqif-run-sigma-vm-on-aarch64-darwin.drv'
run-sigma-vm-on-aarch64-darwin> structuredAttrs is enabled

upload niks3: ok