these 3 derivations will be built:
  /nix/store/y49nd3qdwbyy1krq91a98abi8h8ar2fj-treefmt.toml.drv
  /nix/store/igskkq4mcqfyqz3hqb1qrfcrpyvhfhzk-treefmt.drv
  /nix/store/swqhlq8aq9fjbvm8w7q862nmrv67y95l-treefmt-check.drv
building '/nix/store/y49nd3qdwbyy1krq91a98abi8h8ar2fj-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/igskkq4mcqfyqz3hqb1qrfcrpyvhfhzk-treefmt.drv'
treefmt> structuredAttrs is enabled
building '/nix/store/swqhlq8aq9fjbvm8w7q862nmrv67y95l-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 36 files
treefmt-check> emitted 27 files for processing
treefmt-check> formatted 27 files (0 changed) in 68ms

post-build step Route build to niks3: ok
Pushing mulatta/uv2nix-env to https://niks3.mulatta.io
time=2026-09-22T19:44:18.721+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-09-22T19:44:19.548+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-09-22T19:44:20.384+09:00 level=INFO msg="Upload complete. (1.736s)"