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5b3cb68d97
Document `unreachable!` custom panic message
The `unreachable!` docs previously did not mention that there was a second form, `unreachable!("message")` that could be used to specify a custom panic message,
The docs now mention this feature in the same wording as currently used for `unimplemented!`:
https://doc.rust-lang.org/core/macro.unimplemented.html#panics
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| .. | ||
| alloc | ||
| backtrace@b02ed04a7e | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@5fdbc476af | ||
| test | ||
| unwind | ||