this derivation will be built:
  /nix/store/4n4fqz14x5j5srp1vald3zmy3rm5wjq4-treefmt.toml.drv
this path will be fetched (323.1 KiB download, 805.6 KiB unpacked):
  /nix/store/d7yqcv87rqv9fk8gx28iczbanv4rg9qw-mandoc-1.14.6
building '/nix/store/4n4fqz14x5j5srp1vald3zmy3rm5wjq4-treefmt.toml.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/4n4fqz14x5j5srp1vald3zmy3rm5wjq4-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled

upload niks3: ok