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I got turned off of failure when a reddit user reported that it slowed down his program by 300x and the author of failure's response was that the original poster had misused failure.

https://www.reddit.com/r/rust/comments/7te8si/personal_exper...

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They said the OP misused it largely because the documentation was insufficient, which is a reasonable response. There are different types of error object, and the one used was a poor fit for common, expected errors.

What would you have wanted them to do instead?

That's unfortunate, as I think you're reading into it to see an attitude that is not there. In fact that response makes me more interested in using it.

The author starts by identifying the use of the wrong type. They then immediately blame it on their own documentation in the very next sentence.

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