these 3 derivations will be built:
  /nix/store/f5x18lwwfmis22ynmn4j45gxcb187i9k-treefmt.toml.drv
  /nix/store/2szd9gx7fjs939l6spaxfhw8xk8mix4w-treefmt.drv
  /nix/store/qll45hj82l299rj3v4z6hlmhhqbdgnzc-treefmt-check.drv
this path will be fetched (986.8 KiB download, 2.4 MiB unpacked):
  /nix/store/m7qns7c685ipighxx60bry03pz27kll7-nixfmt-rs-0.5.3
building '/nix/store/f5x18lwwfmis22ynmn4j45gxcb187i9k-treefmt.toml.drv'
treefmt.toml> tribuchet: building on mac02
treefmt.toml> structuredAttrs is enabled
building '/nix/store/2szd9gx7fjs939l6spaxfhw8xk8mix4w-treefmt.drv'
treefmt> tribuchet: building on mac02
treefmt> structuredAttrs is enabled
building '/nix/store/qll45hj82l299rj3v4z6hlmhhqbdgnzc-treefmt-check.drv'
treefmt-check> tribuchet: building on mac02
treefmt-check> treefmt v2.6.0traversed 55 files
treefmt-check> emitted 32 files for processing
treefmt-check> formatted 32 files (0 changed) in 300ms

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