Update E0205 to the new error format

[munyari]

Part of #35233

Addresses #35382
"r? @jonathandturner

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @jonathandturner (or someone else) soon.

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[sophiajt]

Looks good!

@bors r+ rollup

[bors]

📌 Commit 0b248f1 has been approved by jonathandturner

[munyari]

@jonathandturner how could I shrink the span label to only cover Copy in your example?

[sophiajt]

It's going to be different for areas in the compiler, but you can get some ideas from https://github.com/rust-lang/rust/pull/35454/files and https://github.com/rust-lang/rust/pull/35372/files