this derivation will be built:
  /nix/store/0shc88ppy4mgwyp4p1279znx6r0dczbv-omnigent-worker-login.drv
building '/nix/store/0shc88ppy4mgwyp4p1279znx6r0dczbv-omnigent-worker-login.drv' on 'grpc://[fddb:4344:343b:14b9:399:9324:19d9:3451]:50051?ca-cert=/run/nix-grpc-store/ca.crt&connect-timeout=5'
building '/nix/store/0shc88ppy4mgwyp4p1279znx6r0dczbv-omnigent-worker-login.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
omnigent-worker-login> stibnite: building 0shc88ppy4mgwyp4p1279znx6r0dczbv-omnigent-worker-login.drv
omnigent-worker-login> structuredAttrs is enabled
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy

upload niks3: ok