these 3 derivations will be built:
  /nix/store/jg28a0gf239apgwgzmjpcd8lgm8kki0k-treefmt.toml.drv
  /nix/store/z0rply0mb7qrcs1jc2dp6mz2pscy99gn-treefmt.drv
  /nix/store/gxw2f2m1nswp7fll27vbnjsd133621cy-inputDerivation-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/jg28a0gf239apgwgzmjpcd8lgm8kki0k-treefmt.toml.drv'
treefmt.toml> tribuchet: building on mac02
treefmt.toml> structuredAttrs is enabled
building '/nix/store/z0rply0mb7qrcs1jc2dp6mz2pscy99gn-treefmt.drv'
treefmt> tribuchet: building on mac02
treefmt> structuredAttrs is enabled
building '/nix/store/gxw2f2m1nswp7fll27vbnjsd133621cy-inputDerivation-treefmt-check.drv'
inputDerivation-treefmt-check> tribuchet: building on mac02

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