these 2 derivations will be built:
  /nix/store/b41n9m0jidfn12gafq9jy99nyymjm9rq-options.json.drv
  /nix/store/6f4yx4dkxh5g5h2a15n1k7y1fdf2pvir-options.md.drv
building '/nix/store/b41n9m0jidfn12gafq9jy99nyymjm9rq-options.json.drv' on 'ssh-ng://customer@mac02.m.ntd.one'