this derivation will be built:
  /nix/store/3sscsijd1gh02gr3jialjrxkqk4hg1dw-treefmt-check.drv
building '/nix/store/3sscsijd1gh02gr3jialjrxkqk4hg1dw-treefmt-check.drv'
treefmt-check> traversed 209 files
treefmt-check> emitted 107 files for processing
treefmt-check> formatted 107 files (0 changed) in 580ms

post-build step Upload to niks3: ok
time=2026-08-19T20:59:06.415Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-08-19T20:59:06.758Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-19T20:59:07.528Z level=INFO msg="Upload complete. (1.135s)"