Lifetime with `drain`

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In the background example drain is used to read the process' output into a string.

Is there some way to tell drain to stop? In case I need to destroy the string before the process exits.

Currently I'm spawning a process that should run for a while in the background, and my code is in a loop that I want to break out of as soon as the child process prints something to stdout - Is there some way to do that?

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Solved the issue by using read which seems to be better suited for my use case