### CONTEXT (Previous Events):
<system_output timestamp="833.421009">Reading package lists...
</system_output>
<system_output timestamp="833.664205">Building dependency tree...
</system_output>
<system_output timestamp="833.667749">Reading state information...
</system_output>
<system_output timestamp="833.869764">Reading extended state information...
</system_output>
<system_output timestamp="833.891202">Initializing package states...
</system_output>
<system_output timestamp="834.648678">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="834.943319">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="835.489385">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="835.560638">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="835.566553">Fetched 445 kB in 0s (23.3 MB/s)
</system_output>
<system_output timestamp="835.626168">install_packages: executing  aptitude -R -d -o Aptitude::Log=/dev/null -o Aptitude::CmdLine::Ignore-Trust-Violations=yes -o APT::Get::AllowUnauthenticated=true -o Acquire::AllowInsecureRepositories=true -o DPkg::force-conflicts::=yes -o Dir::State=/usr/fai/mirror/aptcache/var/lib/apt -o Dir::Log=/usr/fai/mirror/aptcache/var/log/apt -o Dir::State::extended_states=/usr/fai/mirror/aptcache/var/lib/apt/lists/extended_states -o Dir::State::status=/usr/fai/mirror/aptcache/statefile -o Dir::Cache=/usr/fai/mirror/aptcache/var/cache/apt -o Dir::State=/usr/fai/mirror/aptcache/var/cache/apt -o Dir::Cache::Archives=/usr/fai/mirror/aptcache/var/cache/apt/archives -o Dir::Etc=/usr/fai/mirror/aptcache/etc/apt/ -o Dir::State::Lists=/usr/fai/mirror/aptcache/var/lib/apt/lists/ -y install mutt
</system_output>
<system_output timestamp="835.670325">Reading package lists...
</system_output>
<system_output timestamp="835.912274">Building dependency tree...
</system_output>
<system_output timestamp="835.916145">Reading state information...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="836.112651">Reading extended state information...
</system_output>

Answer: 836.112651, old event