these 3 derivations will be built:
  /nix/store/8abd1ljbq8br4fj12wz2b8fjyjml4zqv-treefmt.toml.drv
  /nix/store/a6nl1cy8x3b0mrpmnh0lx5d8d6m7pxki-treefmt.drv
  /nix/store/bgi2ikblgdq6kkxkx319d4zw9zd1znyd-treefmt-check.drv
this path will be fetched (1.5 MiB download, 9.5 MiB unpacked):
  /nix/store/n91qdph36zlx3cafbck2nqc6mi4nbaqs-prettier-3.9.6
building '/nix/store/8abd1ljbq8br4fj12wz2b8fjyjml4zqv-treefmt.toml.drv'
treefmt.toml> tribuchet: building on jamie
treefmt.toml> structuredAttrs is enabled
building '/nix/store/a6nl1cy8x3b0mrpmnh0lx5d8d6m7pxki-treefmt.drv'
treefmt> tribuchet: building on jamie
building '/nix/store/bgi2ikblgdq6kkxkx319d4zw9zd1znyd-treefmt-check.drv'
treefmt-check> tribuchet: building on jamie
treefmt-check> treefmt v2.6.0traversed 12 files
treefmt-check> emitted 8 files for processing
treefmt-check> formatted 8 files (0 changed) in 231ms

post-build step Upload coverage to codecov: ok
Skipping codecov: project=Mic92/fast-flake-update attr=checks.x86_64-linux.treefmt