these 3 derivations will be built:
  /nix/store/00z3a23njd4rwlrijzzxw8z8z5a44wip-treefmt.toml.drv
  /nix/store/0qn2xa7jshnlhgp0x65g5vvdr4rsl95b-treefmt.drv
  /nix/store/806farsby41iw58qz0cx20hx0i3r3wyg-treefmt-check.drv
building '/nix/store/00z3a23njd4rwlrijzzxw8z8z5a44wip-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/00z3a23njd4rwlrijzzxw8z8z5a44wip-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/0qn2xa7jshnlhgp0x65g5vvdr4rsl95b-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/0qn2xa7jshnlhgp0x65g5vvdr4rsl95b-treefmt.drv'
building '/nix/store/806farsby41iw58qz0cx20hx0i3r3wyg-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/806farsby41iw58qz0cx20hx0i3r3wyg-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 55 files
treefmt-check> emitted 32 files for processing
treefmt-check> formatted 32 files (0 changed) in 100ms

post-build step Upload coverage to codecov: ok
Skipping codecov: project=Mic92/fast-nix-gc attr=aarch64-darwin.treefmt