these 7 derivations will be built:
  /nix/store/xwk25n3fi7iw7azhw7mar6qjjw7n70jf-system-units.drv
  /nix/store/xh8msk1qqjbi7kacshfgfx3cw9mx600m-etc.drv
  /nix/store/dh8nqpcx1hf5lanwp2cqr2qzwd31zg0j-activate.drv
  /nix/store/vfc1m3ikskrkv94fci3lv34nh83g7x8v-nixos-system-server-test.drv
  /nix/store/vyf1kccmrfp91zi3dlcngdyp8wgpw52q-closure-info.drv
  /nix/store/cs0nvnxwf7p0vbiyi834r0ybqm67fhxk-nixos-test-driver-trusted-nix-caches.drv
  /nix/store/7975l3mn0gp2ifabasvfv8jrzf7f7g6r-container-test-run-trusted-nix-caches.drv
building '/nix/store/xwk25n3fi7iw7azhw7mar6qjjw7n70jf-system-units.drv'
building '/nix/store/xh8msk1qqjbi7kacshfgfx3cw9mx600m-etc.drv'
building '/nix/store/dh8nqpcx1hf5lanwp2cqr2qzwd31zg0j-activate.drv'
building '/nix/store/vfc1m3ikskrkv94fci3lv34nh83g7x8v-nixos-system-server-test.drv'
nixos-system-server-test> structuredAttrs is enabled
building '/nix/store/vyf1kccmrfp91zi3dlcngdyp8wgpw52q-closure-info.drv'
closure-info> structuredAttrs is enabled
building '/nix/store/cs0nvnxwf7p0vbiyi834r0ybqm67fhxk-nixos-test-driver-trusted-nix-caches.drv'
nixos-test-driver-trusted-nix-caches> Running type check (enable/disable: config.skipTypeCheck)
nixos-test-driver-trusted-nix-caches> See https://nixos.org/manual/nixos/stable/#test-opt-skipTypeCheck
nixos-test-driver-trusted-nix-caches> Success: no issues found in 1 source file
building '/nix/store/7975l3mn0gp2ifabasvfv8jrzf7f7g6r-container-test-run-trusted-nix-caches.drv' on 'ssh-ng://builder@build-x86-01.clan.lol'
building '/nix/store/7975l3mn0gp2ifabasvfv8jrzf7f7g6r-container-test-run-trusted-nix-caches.drv'
container-test-run-trusted-nix-caches> additionally exposed symbols:
container-test-run-trusted-nix-caches>     server,
container-test-run-trusted-nix-caches>     start_all, machines, driver, Machine, wait_for_signal
container-test-run-trusted-nix-caches> Starting server
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> <<< NixOS Stage 2 >>>
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> booting system configuration /nix/store/cfr7lp6rsfg6vnaacl11vlmcn3a9mf3g-nixos-system-server-test
container-test-run-trusted-nix-caches> running activation script...
container-test-run-trusted-nix-caches> setting up /etc...
container-test-run-trusted-nix-caches> 2: host0@if3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
container-test-run-trusted-nix-caches>     link/ether be:aa:dd:39:86:e7 brd ff:ff:ff:ff:ff:ff link-netnsid 0
container-test-run-trusted-nix-caches> setting up age secrets...
container-test-run-trusted-nix-caches> starting systemd...
container-test-run-trusted-nix-caches> systemd 260.2 running in system mode (+PAM +AUDIT -SELINUX +APPARMOR +IMA +IPE +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 +KMOD +LIBCRYPTSETUP +LIBCRYPTSETUP_PLUGINS +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK -BTF -XKBCOMMON +UTMP +LIBARCHIVE)
container-test-run-trusted-nix-caches> Detected virtualization systemd-nspawn.
container-test-run-trusted-nix-caches> Detected architecture x86-64.
container-test-run-trusted-nix-caches> Detected first boot.
container-test-run-trusted-nix-caches> Initializing machine ID from container UUID.
container-test-run-trusted-nix-caches> Applying preset policy.
container-test-run-trusted-nix-caches> Populated /etc with preset unit settings.
container-test-run-trusted-nix-caches> Queued start job for default target Multi-User System.
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> <<< Welcome to NixOS test (x86_64) - console >>>
container-test-run-trusted-nix-caches> + systemd-run /bin/sh -c '/nix/store/61685rbaxmpigwi3z23i33sv3jyfl70q-coreutils-9.11/bin/sleep 999999999 && echo 38819826-60c1-4a5d-bdc7-b7fa6576cac8'
container-test-run-trusted-nix-caches> Running as unit: run-p304-i4340619.service; invocation ID: 411aa9b6667f416c9a6ca0fce9aee9fe
container-test-run-trusted-nix-caches> To attach to container server run on the same machine that runs the test:
container-test-run-trusted-nix-caches>   sudo nsenter --user --target $(\pgrep -f '^/bin/sh.*38819826-60c1-4a5d-bdc7-b7fa6576cac8') --mount --uts --ipc --net --pid --cgroup /bin/sh -c bash 
container-test-run-trusted-nix-caches> 
container-test-run-trusted-nix-caches> To inject external network and continue test, run:
container-test-run-trusted-nix-caches> sudo /nix/store/h3l4z7p6wny3phbckwwhy1i2g52pdnj4-python3-3.13.15/bin/python3.13 /nix/store/f960jm4nawb9zr6cb9d0vfpb7hifp96b-test-driver-0.0.1/lib/python3.13/site-packages/test_driver/inject_network.py 38819826-60c1-4a5d-bdc7-b7fa6576cac8
container-test-run-trusted-nix-caches> + grep -q cache.clan.lol /etc/nix/nix.conf
container-test-run-trusted-nix-caches> 

upload niks3: failed
time=2026-09-10T02:42:54.268Z 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=2026-09-10T02:44:14.867Z level=WARN msg="Request returned retryable status, retrying" attempt=2 max_attempts=6 backoff=219.137489ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-10T02:45:30.564Z level=WARN msg="Request returned retryable status, retrying" attempt=3 max_attempts=6 backoff=375.383321ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-10T02:46:46.062Z level=WARN msg="Request returned retryable status, retrying" attempt=4 max_attempts=6 backoff=787.42231ms status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-10T02:48:03.084Z level=WARN msg="Request returned retryable status, retrying" attempt=5 max_attempts=6 backoff=1.547958516s status=502 url=https://niks3.clan.lol/api/pending_closures
time=2026-09-10T02:49:20.462Z level=ERROR msg="Fatal error" error="pushing paths: creating pending closures: creating pending closure: server returned 502: "