### CONTEXT (Previous Events):
<system_output timestamp="8658.414224">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 linuxdoc-tools-text
</system_output>
<system_output timestamp="8658.487605">Reading package lists...
</system_output>
<system_output timestamp="8658.773658">Building dependency tree...
</system_output>
<system_output timestamp="8658.775358">Reading state information...
</system_output>
<system_output timestamp="8658.982989">Reading extended state information...
</system_output>
<system_output timestamp="8659.010046">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8659.453164">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8659.713535">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8660.267658">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="8660.337236">Get: 1 http://127.0.0.1:3142/ftp.de.debian.org/debian bookworm/main i386 groff i386 1.22.4-10 [3,393 kB]
</system_output>
<system_output timestamp="8660.429854">Get: 2 http://127.0.0.1:3142/ftp.de.debian.org/debian bookworm/main i386 linuxdoc-tools-text all 0.9.82-1 [22.1 kB]
</system_output>
<system_output timestamp="8660.477677">Fetched 3,416 kB in 0s (22.1 MB/s)
</system_output>
<system_output timestamp="8660.538652">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 ldp-docbook-dsssl
</system_output>
<system_output timestamp="8660.586084">Reading package lists...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="8660.840895">Building dependency tree...
</system_output>

Answer: 8660.840895, old event