326b44e4d3
`Rustc::emit_diagnostic` reconstructs a diagnostic passed in from the macro machinery. Currently it uses the type `DiagnosticBuilder<'_, ErrorGuaranteed>`, which is incorrect, because the diagnostic might be a warning. And if it is a warning, because of the `ErrorGuaranteed` we end up calling into `emit_producing_error_guaranteed` and the assertion within that function (correctly) fails because the level is not an error level. The fix is simple: change the type to `DiagnosticBuilder<'_, ()>`. Using `()` works no matter what the diagnostic level is, and we don't need an `ErrorGuaranteed` here. The panic was reported in #120576. |
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| src | ||
| Cargo.toml | ||
| messages.ftl | ||