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Jan 27, 2026
`std::fmt` -> `core::fmt`
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This changes usage of
std::fmttocore::fmtin the main crate.The corresponding change in the derive macro crate was in #255 .
This simplifies adding support for
no_stdonceerror_in_corebecomes stable.Also changes the single use of
{std -> core}::panic::UnwindSafe.