unknown output for 'Basic time limiting' example

[fangbq]

I input:

$ /usr/local/bin/timeout -t 2 perl -e 'while ($i<100000000) {$i++;}'

Got:

$ TIMEOUT CPU 2.14 MEM 20608 MAXMEM 20608 STALE 0 MAXMEM_RSS 3540
$ <time name="ALL">2180</time>

My system: ubuntu 16.04