this derivation will be built:
  /nix/store/ws28s7yz0nkkvv8nnk9bdpvfawmmbcaw-treefmt-check.drv
building '/nix/store/ws28s7yz0nkkvv8nnk9bdpvfawmmbcaw-treefmt-check.drv'
treefmt-check> traversed 436 files
treefmt-check> emitted 304 files for processing
treefmt-check> formatted 304 files (0 changed) in 2.225s

post-build step Upload to niks3: ok
time=2026-08-16T07:57:59.179Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-16T07:57:59.606Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-16T07:57:59.938Z level=INFO msg="Upload complete. (833ms)"