Matthias Krüger af19a50a26 Rollup merge of #94249 - compiler-errors:better-copy-errors, r=davidtwco ... Better errors when a Copy impl on a Struct is not self-consistent As discovered in a Zulip thread with `@nnethercote` and `@Mark-Simulacrum,` it's not immediately obvious why a field on an ADT doesn't implement `Copy`. This PR attempts to give slightly more detailed information by spinning up a fulfillment context to try to dig down and discover transitive fulfillment errors that cause `is_copy_modulo_regions` to fail on a ADT field. The error message still kinda sucks, but should only show up in the case that an existing error message was totally missing... so I think it's a good compromise for now?		2022-03-23 22:13:22 +01:00
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src	Rollup merge of #94249 - compiler-errors:better-copy-errors, r=davidtwco	2022-03-23 22:13:22 +01:00
Cargo.toml	Rollup merge of #89461 - crlf0710:dyn_upcasting_lint, r=nikomatsakis	2021-10-07 16:24:49 +02:00