this derivation will be built:
  /nix/store/m9v9w8mzb8805jbl2xid60rr7hriqyf9-treefmt-check.drv
building '/nix/store/m9v9w8mzb8805jbl2xid60rr7hriqyf9-treefmt-check.drv' on 'ssh-ng://customer@mac02'