perf: oer: format! in error messages causes allocation #387
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This was referenced Dec 30, 2024
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Use of format! in error message seemed to introduce allocation regardless whether error happened or not, and it was also in lazily evaluated context, so this is a bit odd.
Allocation does not happen if it is defined in snafu(display())
We likely need to measure impact of every error message then at some point...
I changed the error for OER in one place since it is in critical place.