these 4 derivations will be built:
  /nix/store/ibah043lddhmxnxld7vvxvczgx25fxfb-test-script.drv
  /nix/store/9iyn0dgbcbg8jjzkkb8f21mvpkh5xjdm-driverConfiguration.json.drv
  /nix/store/c8a4c51hs6dh5zzq0adw50wal5d6xvfk-nixos-test-driver-iets-flaketest.drv
  /nix/store/2j63y1whqc3k3r8pyw32v5ixpv3n6s7c-container-test-run-iets-flaketest.drv
error: Cannot build '/nix/store/2j63y1whqc3k3r8pyw32v5ixpv3n6s7c-container-test-run-iets-flaketest.drv'.
       Reason: builder failed with exit code 143.
       Output paths:
         /nix/store/w8bg66r0njwwlak3pnj8prgdrgwzrbng-container-test-run-iets-flaketest
       Last 25 log lines:
       > machine # [1384011.502427] machine systemd[1]: Finished Cleanup of Temporary Directories.
       > ok   big: devShell
       > machine # [1384391.147024] machine nix-daemon[5006]: accepted connection from pid 5132, user alice (trusted)
       > ok   big: devShell, IETS_WORKERS=8
       > machine # [1385032.907123] machine nix-daemon[5006]: accepted connection from pid 5167, user alice (trusted)
       > ok   big: nixosConfigurations.scratch toplevel
       > ok   big: tree-meta-in-drv reports an input's metadata under [lint.inputs.lib]
       > machine # [1386657.834314] machine nix-daemon[5006]: accepted connection from pid 5237, user alice (trusted)
       > ok   lock: relative path input has no narHash, as nix writes it
       > machine # [1386669.043693] machine nix-daemon[5006]: accepted connection from pid 5283, user alice (trusted)
       > ok   worktree: clean tree nix never saw, nothing fetched
       > machine # [1386681.212039] machine nix-daemon[5006]: accepted connection from pid 5317, user alice (trusted)
       > ok   worktree: dirty tree nix never saw, nothing fetched
       > timeout reached; test terminating...
       > kill NspawnMachine (pid 50)
       > machine: output:
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 8, in <module>
       > !!!     machine.succeed("runuser -l alice -c 'cd iets && IETS=/nix/store/qnxz3nwdypz33gzpy1bbjn7p1bcll23m-iets-0.1.0/bin/iets NIXPKGS=/nix/store/hhfnpma32czw4h3bqpag8dciax0bcmar-source E2E_OFFLINE=1   nu scripts/flaketest.nu' >&2")
       > !!! 
       > !!! RequestedAssertionFailed: command `runuser -l alice -c 'cd iets && IETS=/nix/store/qnxz3nwdypz33gzpy1bbjn7p1bcll23m-iets-0.1.0/bin/iets NIXPKGS=/nix/store/hhfnpma32czw4h3bqpag8dciax0bcmar-source E2E_OFFLINE=1   nu scripts/flaketest.nu' >&2` failed (exit code -9)
       > cleanup
       > kill NspawnMachine (pid 50)
       > Container machine terminated by signal KILL.
       > Terminated                 /nix/store/xvf1r6xz62lx2h8d39xwyvlxhyfnqfsw-nixos-test-driver-iets-flaketest/bin/nixos-test-driver -o $out
       For full logs, run:
         nix log /nix/store/2j63y1whqc3k3r8pyw32v5ixpv3n6s7c-container-test-run-iets-flaketest.drv