this derivation will be built:
  /nix/store/q38cb1xm961lis7sq2vs07p3c0w4y3z3-nix-shell.drv
this path will be fetched (0.0 KiB download, 13.7 MiB unpacked):
  /nix/store/7blbyj2ma15jrbfpn635zm81bj4gfijc-openspec-1.14.3
building '/nix/store/q38cb1xm961lis7sq2vs07p3c0w4y3z3-nix-shell.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/q38cb1xm961lis7sq2vs07p3c0w4y3z3-nix-shell.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
nix-shell> stibnite: building q38cb1xm961lis7sq2vs07p3c0w4y3z3-nix-shell.drv
nix-shell> Running phase: buildPhase

upload niks3: ok