these 3 derivations will be built:
  /nix/store/fxkasjcv1p4x5lrm0vxm1gqp7v21qdf1-treefmt.toml.drv
  /nix/store/a028mx054gmg3mg3kz0bzynigpf72f72-treefmt.drv
  /nix/store/agzigvfgj2981ms4v17ljsn358ny5jff-treefmt-check.drv
this path will be fetched (258.0 KiB download, 583.5 KiB unpacked):
  /nix/store/a8snvaw47y3l6ar6nr92ggs6x9vjqv8g-json2x-0.1.0
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/agzigvfgj2981ms4v17ljsn358ny5jff-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 85ms

post-build step Route build to niks3: ok
Pushing mulatta/dagster-nix to https://niks3.mulatta.io
time=2026-09-30T07:00:29.951+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-09-30T07:00:30.323+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-09-30T07:00:30.880+09:00 level=INFO msg="Upload complete. (1.07s)"