this derivation will be built:
  /nix/store/a6lcw672hvmiyfg3w5h0i8y7ldq5hhkd-treefmt-check.drv
building '/nix/store/a6lcw672hvmiyfg3w5h0i8y7ldq5hhkd-treefmt-check.drv'
treefmt-check> traversed 526 files
treefmt-check> emitted 283 files for processing
treefmt-check> formatted 283 files (0 changed) in 1.549s

post-build step Upload to niks3: ok
time=2026-09-21T13:04:56.812Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-21T13:04:57.317Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-21T13:04:57.765Z level=INFO msg="Upload complete. (976ms)"