these 3 derivations will be built:
  /nix/store/69alxppr4fhp6ajwsvcbnbmq61q9m3c6-treefmt.toml.drv
  /nix/store/69hmzr9pmxqiibj5grnhq2mq59ww5v29-treefmt.drv
  /nix/store/bi2yvf1p58r6vygyw8cf8x0x89kcz9qg-inputDerivation-treefmt-check.drv
building '/nix/store/69alxppr4fhp6ajwsvcbnbmq61q9m3c6-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/69alxppr4fhp6ajwsvcbnbmq61q9m3c6-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/69hmzr9pmxqiibj5grnhq2mq59ww5v29-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/69hmzr9pmxqiibj5grnhq2mq59ww5v29-treefmt.drv'
building '/nix/store/bi2yvf1p58r6vygyw8cf8x0x89kcz9qg-inputDerivation-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/bi2yvf1p58r6vygyw8cf8x0x89kcz9qg-inputDerivation-treefmt-check.drv'

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