this derivation will be built:
  /nix/store/ddrhqryps5xmmnbsbcd7dvb9c99c0zy3-markdown-tree-parser-1.6.1.drv
building '/nix/store/ddrhqryps5xmmnbsbcd7dvb9c99c0zy3-markdown-tree-parser-1.6.1.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/ddrhqryps5xmmnbsbcd7dvb9c99c0zy3-markdown-tree-parser-1.6.1.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
markdown-tree-parser-1.6.1> stibnite: building ddrhqryps5xmmnbsbcd7dvb9c99c0zy3-markdown-tree-parser-1.6.1.drv

upload niks3: ok