these 11 derivations will be built:
  /nix/store/0m3a26h6hbn12m77s3sdllc4fqdd2frx-extra-hosts.drv
  /nix/store/1gv4lng7y1ra0f9k7la463001507nfv0-string-hosts.drv
  /nix/store/cz7vkmcr3vm1sazm03wfibmirpaynlbs-unit-tincr-naru.service.drv
  /nix/store/gvk38ww7dalwp2pkb1n1hrylanmamdy9-system-units.drv
  /nix/store/p884jmff6ng6r2jzkq7j0k86gza5ca3n-hosts.drv
  /nix/store/940444nba667dfw1fx9ip2cxv68rxfb3-etc.drv
  /nix/store/4l86z8x0df1rkhxdk2gsb2n59pq06m45-activate.drv
  /nix/store/dwqvjsimwrx1kzjqngv9fpn4c0ip8rbz-check-sshd-config.drv
  /nix/store/px1ncnx1s5mq4k4pj8vy52wjn7lrp1w7-postgresql-configfile-check.drv
  /nix/store/zdlsza54s4h9cz32g7id38g535s8p454-boot.json.drv
  /nix/store/cfqxxj5znax8f89ghmjlqkkqpp29517l-nixos-system-tau-26.11.20260823.203b7a4.drv
building '/nix/store/zdlsza54s4h9cz32g7id38g535s8p454-boot.json.drv'
building '/nix/store/0m3a26h6hbn12m77s3sdllc4fqdd2frx-extra-hosts.drv'
building '/nix/store/1gv4lng7y1ra0f9k7la463001507nfv0-string-hosts.drv'
building '/nix/store/cz7vkmcr3vm1sazm03wfibmirpaynlbs-unit-tincr-naru.service.drv'
unit-tincr-naru.service> structuredAttrs is enabled
building '/nix/store/dwqvjsimwrx1kzjqngv9fpn4c0ip8rbz-check-sshd-config.drv'
building '/nix/store/px1ncnx1s5mq4k4pj8vy52wjn7lrp1w7-postgresql-configfile-check.drv'
building '/nix/store/p884jmff6ng6r2jzkq7j0k86gza5ca3n-hosts.drv'
building '/nix/store/gvk38ww7dalwp2pkb1n1hrylanmamdy9-system-units.drv'
postgresql-configfile-check> 2026-08-29 06:38:50.834 GMT [5] LOG:  skipping missing configuration file "/nix/store/xqy5qq41fcyzgivcmw0zcni5sq10brd8-postgresql.conf/postgresql.auto.conf"
building '/nix/store/940444nba667dfw1fx9ip2cxv68rxfb3-etc.drv'
building '/nix/store/4l86z8x0df1rkhxdk2gsb2n59pq06m45-activate.drv'
building '/nix/store/cfqxxj5znax8f89ghmjlqkkqpp29517l-nixos-system-tau-26.11.20260823.203b7a4.drv'
nixos-system-tau-26.11.20260823.203b7a4> structuredAttrs is enabled

post-build step Route build to niks3: failed
Pushing SBEE-Lab/infra to https://niks3.sjanglab.org
time=2026-08-29T15:40:51.629+09:00 level=ERROR msg="Fatal error" error="pushing paths: creating pending closures: creating pending closure: server returned 400: failed to decode request: read tcp 10.100.0.2:5751->10.100.0.1:52524: i/o timeout\n"