these 4 derivations will be built:
  /nix/store/hfp7fjxv9byckyl19wg62v4m1zjk0i8v-home-manager-files.drv
  /nix/store/14w6f1n87giymh9c1f5k877f02lgc5g5-hm-putter.json.drv
  /nix/store/1gjd3wfazc8n68p6zm7xblbrp5p53rxb-home-manager-agents.drv
  /nix/store/hsyskphfjzf76wcbljckigd92z25s7qn-home-manager-generation.drv
building '/nix/store/1gjd3wfazc8n68p6zm7xblbrp5p53rxb-home-manager-agents.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/hfp7fjxv9byckyl19wg62v4m1zjk0i8v-home-manager-files.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/1gjd3wfazc8n68p6zm7xblbrp5p53rxb-home-manager-agents.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
home-manager-agents> stibnite: building 1gjd3wfazc8n68p6zm7xblbrp5p53rxb-home-manager-agents.drv
building '/nix/store/hfp7fjxv9byckyl19wg62v4m1zjk0i8v-home-manager-files.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
home-manager-files> stibnite: building hfp7fjxv9byckyl19wg62v4m1zjk0i8v-home-manager-files.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
building '/nix/store/14w6f1n87giymh9c1f5k877f02lgc5g5-hm-putter.json.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/14w6f1n87giymh9c1f5k877f02lgc5g5-hm-putter.json.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
hm-putter.json> stibnite: building 14w6f1n87giymh9c1f5k877f02lgc5g5-hm-putter.json.drv
hm-putter.json> structuredAttrs is enabled
building '/nix/store/hsyskphfjzf76wcbljckigd92z25s7qn-home-manager-generation.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/hsyskphfjzf76wcbljckigd92z25s7qn-home-manager-generation.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
home-manager-generation> stibnite: building hsyskphfjzf76wcbljckigd92z25s7qn-home-manager-generation.drv

upload niks3: ok