these 3 derivations will be built:
  /nix/store/gj2n95sw9c1p786d8cnba5bbwd93j3ln-treefmt.toml.drv
  /nix/store/wchw7cfjq44f7sjvsxh1i0wxmfbnyvrd-treefmt.drv
  /nix/store/306b0hqpvbh1wspzimfpsa2b0ykc307j-treefmt-check.drv
this path will be fetched (964.9 KiB download, 2.3 MiB unpacked):
  /nix/store/q3wdvmgvnahnxr5gp1z3qpqkci2z19zm-nixfmt-rs-0.4.1
building '/nix/store/gj2n95sw9c1p786d8cnba5bbwd93j3ln-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/gj2n95sw9c1p786d8cnba5bbwd93j3ln-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/wchw7cfjq44f7sjvsxh1i0wxmfbnyvrd-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/wchw7cfjq44f7sjvsxh1i0wxmfbnyvrd-treefmt.drv'
building '/nix/store/306b0hqpvbh1wspzimfpsa2b0ykc307j-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/306b0hqpvbh1wspzimfpsa2b0ykc307j-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 47 files
treefmt-check> emitted 37 files for processing
treefmt-check> formatted 37 files (0 changed) in 304ms

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