this derivation will be built:
  /nix/store/vy2cnkw2mbimcnk52z7sppf7pjvknac2-nix-shell.drv
this path will be fetched (2.0 MiB download, 4.9 MiB unpacked):
  /nix/store/2y1l8ipy3yjqsvvbdnvvwycr817in21n-just-1.58.0
building '/nix/store/vy2cnkw2mbimcnk52z7sppf7pjvknac2-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/vy2cnkw2mbimcnk52z7sppf7pjvknac2-nix-shell.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
nix-shell> stibnite: building vy2cnkw2mbimcnk52z7sppf7pjvknac2-nix-shell.drv
nix-shell> Running phase: buildPhase

upload niks3: ok