Switch to std::error::Error for errors #3948
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Nice, thank you! |
calebcartwright
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Jun 12, 2020
This was referenced Jun 12, 2020
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backported in #4253 |
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In attempting to modernize https://github.com/dtolnay/syn/blob/1.0.9/codegen/src/error.rs I ran into trouble because rustfmt::ErrorKind does not implement the std::error::Error trait.
This PR drops the reliance on the failure::Fail trait and gives errors a std::error::Error implementation, using thiserror to replace derive(Fail) and anyhow to replace failure::Error.