this derivation will be built:
  /nix/store/xw40z73v3nxj0si0qi0xwgaj13xi6yvx-treefmt-check.drv
building '/nix/store/xw40z73v3nxj0si0qi0xwgaj13xi6yvx-treefmt-check.drv'
treefmt-check> traversed 528 files
treefmt-check> emitted 285 files for processing
treefmt-check> formatted 285 files (0 changed) in 1.377s

post-build step Upload to niks3: ok
time=2026-09-21T15:24:01.855Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T15:24:02.399Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T15:24:02.851Z level=INFO msg="Upload complete. (1.015s)"