this derivation will be built:
  /nix/store/5r86ddhsbl3dvxygsrymwmvjxcg8jwvx-treefmt-check.drv
building '/nix/store/5r86ddhsbl3dvxygsrymwmvjxcg8jwvx-treefmt-check.drv' on 'ssh-ng://customer@mac02'