### CONTEXT (Previous Events):
<user_input timestamp="6586.787614">[A</user_input>
<system_output timestamp="6586.790885">cd fai/</system_output>
<user_input timestamp="6587.008694">[A</user_input>
<system_output timestamp="6587.022848">sudo bash -c 'time ./make-fai-cd.sh 2&gt;&amp;1 | tee make-fai-cd.out'</system_output>
<user_input timestamp="6587.423146">
</user_input>
<system_output timestamp="6587.43028">
[?2004l
</system_output>
<system_output timestamp="6587.439049">sudo: unable to resolve host faiserver: Name or service not known
</system_output>
<system_output timestamp="6587.594319">umount: /home/fai/nfsroot/proc: not mounted.
</system_output>
<system_output timestamp="6587.599429">umount: /home/fai/nfsroot/sys: not mounted.
</system_output>
<system_output timestamp="6589.993122">Using configuration files from /etc/fai
</system_output>
<system_output timestamp="6590.018302">Creating FAI nfsroot in /srv/fai/nfsroot
</system_output>
<system_output timestamp="6590.190713">Creating base system using debootstrap version 1.0.128+nmu2+deb12u1
</system_output>
<system_output timestamp="6590.220306">Calling debootstrap --exclude=tasksel,nano --include=aptitude bookworm /srv/fai/nfsroot http://127.0.0.1:3142/ftp.us.debian.org/debian
</system_output>
<system_output timestamp="6590.445259">I: Retrieving InRelease 
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="6590.768448">I: Checking Release signature
</system_output>

Answer: 6590.768448, old event