these 3 derivations will be built:
  /nix/store/c52zmgqal0d57gg25kj4pxl5qp0xcasc-treefmt.toml.drv
  /nix/store/6d8vrn2r41sgl6av94k90gxp4d0xr5g9-treefmt.drv
  /nix/store/abm8m0z6xwycdrcxq82sj7vzb2vvnl10-treefmt-check.drv
building '/nix/store/c52zmgqal0d57gg25kj4pxl5qp0xcasc-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/c52zmgqal0d57gg25kj4pxl5qp0xcasc-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/6d8vrn2r41sgl6av94k90gxp4d0xr5g9-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/6d8vrn2r41sgl6av94k90gxp4d0xr5g9-treefmt.drv'
building '/nix/store/abm8m0z6xwycdrcxq82sj7vzb2vvnl10-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/abm8m0z6xwycdrcxq82sj7vzb2vvnl10-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 26 files
treefmt-check> emitted 19 files for processing
treefmt-check> formatted 19 files (0 changed) in 131ms

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