### CONTEXT (Previous Events):
<system_output timestamp="1867.003302">I: Configuring tasksel-data...
</system_output>
<system_output timestamp="1867.056688">I: Configuring libc-bin...
</system_output>
<system_output timestamp="1867.146997">I: Base system installed successfully.
</system_output>
<system_output timestamp="1867.37848">Creating base.tar.xz
</system_output>
<system_output timestamp="1868.515031">Warning: no hostname for 172.16.0.17 found, not adding to /etc/hosts.
</system_output>
<system_output timestamp="1868.517122">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1868.519438">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1868.520058">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1868.726827">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1868.972063">Get:2 http://127.0.0.1:3142/ftp.de.debian.org/debian bookworm/main i386 Packages [8680 kB]
</system_output>
<system_output timestamp="1871.327174">Fetched 8831 kB in 3s (3304 kB/s)
Reading package lists...</system_output>
<system_output timestamp="1872.386638">
</system_output>
<system_output timestamp="1874.705557">Reading package lists...</system_output>
<system_output timestamp="1874.740077">
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="1874.744877">Building dependency tree...</system_output>

Answer: 1874.744877, new event