The text of the poem is as below:

< !*''#
^"`$$ -
!*=@$ _
%*< ~#4
&((../
|{} ,,SYSTEM HALTED

The poem can only be appreciated by reading it aloud, to wit:

Waka waka bang splat tick tick hash,
Caret quote back-tick dollar dollar dash,
Bang splat equal at dollar under-score,
Percent splat waka waka tilde number four,
Ampersand bracket bracket dot dot slash,
Vertical-bar curly-bracket comma comma CRASH.