this derivation will be built:
  /nix/store/agz1y3qv4w8a94df75j4fnwaddaw5k2d-treefmt-check.drv
building '/nix/store/agz1y3qv4w8a94df75j4fnwaddaw5k2d-treefmt-check.drv' on 'ssh-ng://nix-remote-builder@bld3.m.ntd.one'
building '/nix/store/agz1y3qv4w8a94df75j4fnwaddaw5k2d-treefmt-check.drv'
treefmt-check> traversed 446 files
treefmt-check> emitted 311 files for processing
treefmt-check> formatted 311 files (0 changed) in 5.834s

post-build step Upload to niks3: ok
time=2026-08-20T18:42:29.187Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-20T18:42:29.656Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-20T18:42:30.044Z level=INFO msg="Upload complete. (927ms)"