these 3 derivations will be built:
  /nix/store/b6wlawnicgx81sgczz1n3pv3s0c1mkvp-treefmt.toml.drv
  /nix/store/v4rv2rzajv4lyrlsp97v67m6hpx8aw0g-treefmt.drv
  /nix/store/0mp0ylxi7xpx4mw2g5fmifpxyffdiwx6-treefmt-check.drv
building '/nix/store/b6wlawnicgx81sgczz1n3pv3s0c1mkvp-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/v4rv2rzajv4lyrlsp97v67m6hpx8aw0g-treefmt.drv'
building '/nix/store/0mp0ylxi7xpx4mw2g5fmifpxyffdiwx6-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 23 files
treefmt-check> emitted 20 files for processing
treefmt-check> formatted 20 files (0 changed) in 75ms

post-build step Route build to niks3: ok
Pushing mulatta/dagster-nix to https://niks3.mulatta.io
time=2026-09-01T07:38:22.601+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-09-01T07:38:23.110+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T07:38:23.646+09:00 level=INFO msg="Upload complete. (2.257s)"