these 3 derivations will be built:
  /nix/store/fxkasjcv1p4x5lrm0vxm1gqp7v21qdf1-treefmt.toml.drv
  /nix/store/a028mx054gmg3mg3kz0bzynigpf72f72-treefmt.drv
  /nix/store/yrg15pwwcdwxlq3r8m7rxzpym04wpn65-treefmt-check.drv
building '/nix/store/fxkasjcv1p4x5lrm0vxm1gqp7v21qdf1-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/a028mx054gmg3mg3kz0bzynigpf72f72-treefmt.drv'
treefmt> structuredAttrs is enabled
building '/nix/store/yrg15pwwcdwxlq3r8m7rxzpym04wpn65-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 23 files
treefmt-check> emitted 20 files for processing
treefmt-check> formatted 20 files (0 changed) in 78ms

post-build step Route build to niks3: ok
Pushing mulatta/dagster-nix to https://niks3.mulatta.io
time=2026-09-23T06:00:48.391+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-09-23T06:00:48.786+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-09-23T06:00:49.130+09:00 level=INFO msg="Upload complete. (822ms)"