these 3 derivations will be built:
  /nix/store/g9a1289rpgqja74na7qpwzcvyivj3119-treefmt.toml.drv
  /nix/store/a1fq7pydifdkimaamljxd96b43g54n5i-treefmt.drv
  /nix/store/vg19d69i41zxg7gkw75w8khkwkk78ias-treefmt-check.drv
this path will be fetched (1.1 MiB download, 2.7 MiB unpacked):
  /nix/store/s3ldqwlvcvhz5cs21xch3ihj9h663b3c-nixfmt-rs-0.4.1
building '/nix/store/vg19d69i41zxg7gkw75w8khkwkk78ias-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 201ms

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