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Re:Rust Is Surprisingly Good as a Server Language by whatshisface on Monday July 13, 2020 @10:46AM (#23821302)
Might we get an -O2?
Re:Rust Is Surprisingly Good as a Server Language by steveklabnik on Monday July 13, 2020 @11:44AM (#23821975)
It exists as well, and if you want to use it, it's a short "throw the option in your cargo config and call it a day."

That being said, I'm not aware of it making any meaningful difference.