lotsa write calls

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1. fasterthanlime 🌌 (fasterthanlime@hachyderm.io)'s status on Tuesday, 07-Mar-2023 17:52:13 JST fasterthanlime 🌌

   in reply to

   whoa, `println!("{:016x}")` writes every 0 with a single write, no buffering involved - presumably to avoid allocations.

   maybe that only applies to stderr but... that can't be efficient 🤔