this derivation will be built:
  /nix/store/fh5z12as9vpkvmhd4hd0kf79h9pmmqqj-treefmt-check.drv
building '/nix/store/fh5z12as9vpkvmhd4hd0kf79h9pmmqqj-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 711 files
treefmt-check> emitted 674 files for processing
treefmt-check> formatted 674 files (0 changed) in 798ms

post-build step Route build to niks3: failed
Pushing mulatta/dots to https://niks3.mulatta.io
time=2026-09-04T22:15:07.003+09:00 level=WARN msg="Request failed, retrying" attempt=1 max_attempts=6 backoff=100ms error="Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/cache-config
time=2026-09-04T22:15:07.109+09:00 level=WARN msg="Request failed, retrying" attempt=2 max_attempts=6 backoff=190.8205ms error="Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/cache-config
time=2026-09-04T22:15:07.304+09:00 level=WARN msg="Request failed, retrying" attempt=3 max_attempts=6 backoff=383.954935ms error="Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/cache-config
time=2026-09-04T22:15:07.693+09:00 level=WARN msg="Request failed, retrying" attempt=4 max_attempts=6 backoff=737.896311ms error="Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/cache-config
time=2026-09-04T22:15:08.436+09:00 level=WARN msg="Request failed, retrying" attempt=5 max_attempts=6 backoff=1.57225839s error="Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/cache-config
time=2026-09-04T22:15:10.014+09:00 level=WARN msg="Failed to fetch cache config, uploading without size limit" error="fetching cache config: sending request: request failed after retries: Get \"https://niks3.mulatta.io/api/cache-config\": dial tcp 64.176.225.253:443: connect: connection refused"
time=2026-09-04T22:15:10.018+09:00 level=WARN msg="Request failed, retrying" attempt=1 max_attempts=6 backoff=100ms error="Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/pending_closures
time=2026-09-04T22:15:10.122+09:00 level=WARN msg="Request failed, retrying" attempt=2 max_attempts=6 backoff=205.939719ms error="Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/pending_closures
time=2026-09-04T22:15:10.333+09:00 level=WARN msg="Request failed, retrying" attempt=3 max_attempts=6 backoff=368.649336ms error="Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/pending_closures
time=2026-09-04T22:15:10.707+09:00 level=WARN msg="Request failed, retrying" attempt=4 max_attempts=6 backoff=799.330922ms error="Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/pending_closures
time=2026-09-04T22:15:11.511+09:00 level=WARN msg="Request failed, retrying" attempt=5 max_attempts=6 backoff=1.517531032s error="Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused" url=https://niks3.mulatta.io/api/pending_closures
time=2026-09-04T22:15:13.033+09:00 level=ERROR msg="Fatal error" error="pushing paths: creating pending closures: creating pending closure: sending request: request failed after retries: Post \"https://niks3.mulatta.io/api/pending_closures\": dial tcp 64.176.225.253:443: connect: connection refused"