this derivation will be built:
  /nix/store/x3g36h0pbr005i02jdsfrkk23adykrpx-treefmt-check.drv
building '/nix/store/x3g36h0pbr005i02jdsfrkk23adykrpx-treefmt-check.drv'
treefmt-check> traversed 213 files
treefmt-check> emitted 111 files for processing
treefmt-check> formatted 111 files (0 changed) in 647ms

post-build step Upload to niks3: ok
time=2026-08-20T15:31:46.394Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-08-20T15:31:46.912Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-20T15:31:52.016Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=100ms status=500 url="https://s3.eu-central-003.backblazeb2.com/geninf-cache/r7ppbr0vg8375ji2w37jnxricrx6ihbk.narinfo?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=003eaae730241090000000002%2F20260820%2Feu-central-003%2Fs3%2Faws4_request&X-Amz-Date=20260820T153146Z&X-Amz-Expires=18000&X-Amz-SignedHeaders=host&X-Amz-Signature=3ff5d226012e735908858d879575e6610d2ed7d9f4a4b44001d8c9deaf183079"
time=2026-08-20T15:31:52.366Z level=INFO msg="Upload complete. (5.991s)"