this derivation will be built:
  /nix/store/cb9xdi8ba2q1g48jr6sxd6ci6k3rj7m5-treefmt-check.drv
building '/nix/store/cb9xdi8ba2q1g48jr6sxd6ci6k3rj7m5-treefmt-check.drv' on 'ssh-ng://nix-remote-builder@bld3.m.ntd.one'
building '/nix/store/cb9xdi8ba2q1g48jr6sxd6ci6k3rj7m5-treefmt-check.drv'
treefmt-check> traversed 449 files
treefmt-check> emitted 313 files for processing
treefmt-check> formatted 313 files (0 changed) in 16.086s

post-build step Upload to niks3: ok
time=2026-08-25T18:18:19.429Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-25T18:18:19.844Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T18:18:20.223Z level=INFO msg="Upload complete. (868ms)"