build checks.x86_64-linux.formatter

Reproduce this run
  1. 3.85 s Progress: 0 of 5 built, 28 of 36 downloaded from cache (2 downloading)
  2. 3.91 s Downloaded cached icu4c-78.3-dev (5.9 MiB) in 81ms
  3. 3.91 s Progress: 0 of 4 built, 29 of 36 downloaded from cache (1 downloading)
  4. 3.91 s Downloading cached nodejs-slim from https://cache.nix-ci.com
  5. 4.03 s Downloaded cached treefmt (9.5 MiB) in 554ms
  6. 4.03 s Progress: 0 of 4 built, 30 of 36 downloaded from cache (1 downloading)
  7. 4.21 s Downloaded cached nodejs-slim (84.6 MiB) in 296ms
  8. 4.21 s Progress: 0 of 3 built, 31 of 36 downloaded from cache
  9. 4.21 s Downloading cached nodejs-slim-24.19.0-corepack from https://cache.nix-ci.com
  10. 4.21 s Downloading cached nodejs-slim-24.19.0-npm from https://cache.nix-ci.com
  11. 4.27 s Downloaded cached nodejs-slim-24.19.0-corepack (593 KiB) in 55ms
  12. 4.27 s Progress: 0 of 3 built, 32 of 36 downloaded from cache (1 downloading)
  13. 4.39 s Downloaded cached nodejs-slim-24.19.0-npm (12.1 MiB) in 177ms
  14. 4.39 s Progress: 0 of 3 built, 33 of 36 downloaded from cache
  15. 4.39 s Downloading cached nodejs from https://cache.nix-ci.com
  16. 4.54 s Downloaded cached nodejs (824 KiB) in 153ms
  17. 4.54 s Progress: 0 of 3 built, 34 of 36 downloaded from cache
  18. 4.54 s Downloading cached prettier from https://cache.nix-ci.com
  19. 4.80 s Downloaded cached prettier (8.2 MiB) in 259ms
  20. 4.80 s Progress: 0 of 3 built, 35 of 36 downloaded from cache
  21. 4.80 s Downloading cached treefmt.toml from https://sellout.cachix.org
  22. 5.09 s Downloaded cached treefmt.toml (2040 B) in 287ms
  23. 5.09 s Progress: 0 of 3 built, 36 of 36 downloaded from cache
  24. 5.12 s Building /nix/store/7hrp4rvj697z89jz16lybpas5ix235pw-treefmt.drv
  25. 5.19 s [treefmt:post-build] Uploading to cachix cache "sellout": /nix/store/aav1ir1q7lyv8m9ihshd600csjryv3yg-treefmt
  26. 5.62 s [treefmt:post-build] Nothing to push - all store paths are already on Cachix.