these 2 derivations will be built:
  /nix/store/r6xg6vgb246r8sl46mdryk50wxidkq0j-nix-grpc-store-0.1.0.drv
  /nix/store/f6grgi5rignny3a9yvsycmwlqf8s8ss3-nix-grpc-store-exit-stress.drv
building '/nix/store/r6xg6vgb246r8sl46mdryk50wxidkq0j-nix-grpc-store-0.1.0.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/r6xg6vgb246r8sl46mdryk50wxidkq0j-nix-grpc-store-0.1.0.drv'