these 3 derivations will be built:
  /nix/store/b6wlawnicgx81sgczz1n3pv3s0c1mkvp-treefmt.toml.drv
  /nix/store/v4rv2rzajv4lyrlsp97v67m6hpx8aw0g-treefmt.drv
  /nix/store/bnbjqqy13lbzlv32y2yzag8v2243kkk3-treefmt-check.drv
building '/nix/store/b6wlawnicgx81sgczz1n3pv3s0c1mkvp-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/v4rv2rzajv4lyrlsp97v67m6hpx8aw0g-treefmt.drv'
building '/nix/store/bnbjqqy13lbzlv32y2yzag8v2243kkk3-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 81ms

post-build step Route build to niks3: ok
Pushing mulatta/dagster-nix to https://niks3.mulatta.io
time=2026-08-30T05:37:03.607+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-08-30T05:37:04.111+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T05:37:05.233+09:00 level=INFO msg="Upload complete. (1.738s)"