these 3 derivations will be built:
  /nix/store/8i5j810a12ks51r4n72jck1q2sw5j45f-treefmt.toml.drv
  /nix/store/c9zmp2g4x8bnnmmkmh0iyrjk7a2bbwdw-treefmt.drv
  /nix/store/6la2scsssg9smdfblz0hcjxbnn6gjcs8-treefmt-check.drv
building '/nix/store/8i5j810a12ks51r4n72jck1q2sw5j45f-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/8i5j810a12ks51r4n72jck1q2sw5j45f-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/c9zmp2g4x8bnnmmkmh0iyrjk7a2bbwdw-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/c9zmp2g4x8bnnmmkmh0iyrjk7a2bbwdw-treefmt.drv'
building '/nix/store/6la2scsssg9smdfblz0hcjxbnn6gjcs8-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/6la2scsssg9smdfblz0hcjxbnn6gjcs8-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 316 files
treefmt-check> emitted 248 files for processing
treefmt-check> formatted 248 files (0 changed) in 402ms

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