this derivation will be built:
  /nix/store/xcy9j88rzqjf58c6c9mcy78d1l3ks9bb-treefmt-check.drv
building '/nix/store/xcy9j88rzqjf58c6c9mcy78d1l3ks9bb-treefmt-check.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/xcy9j88rzqjf58c6c9mcy78d1l3ks9bb-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 207 files
treefmt-check> emitted 110 files for processing
treefmt-check> formatted 110 files (0 changed) in 1.738s

upload niks3: failed
time=2026-09-09T02:09:35.333Z level=WARN msg="Request returned retryable status, retrying" attempt=1 max_attempts=6 backoff=100ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-09T02:11:19.436Z level=WARN msg="Request returned retryable status, retrying" attempt=2 max_attempts=6 backoff=181.282543ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-09T02:13:01.230Z level=WARN msg="Request returned retryable status, retrying" attempt=3 max_attempts=6 backoff=402.88956ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-09T02:14:55.597Z level=WARN msg="Request returned retryable status, retrying" attempt=4 max_attempts=6 backoff=858.445838ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-09T02:16:38.674Z level=WARN msg="Request returned retryable status, retrying" attempt=5 max_attempts=6 backoff=1.513927804s status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-09T02:18:28.628Z level=ERROR msg="Fatal error" error="pushing paths: creating pending closures: creating pending closure: server returned 502: "