Dramatic Irony seems to fit.

> Dramatic irony is a disparity of awareness between actor and observer: when words and actions possess significance that the listener or audience understands, but the speaker or character does not, for example when a character says to another "I'll see you tomorrow!" when the audience (but not the character) knows that the character will die before morning.

"I set up a web server!" when the audience (but not the character) knows that the web server will die before morning.