Aaron Turon
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6815c2e8e8
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Add error module with Error and FromError traits
As per [RFC 70](https://github.com/rust-lang/rfcs/blob/master/active/0070-error-chaining.md)
Closes #17747
Note that the `error` module must live in `std` in order to refer to `String`.
Note that, until multidispatch lands, the `FromError` trait cannot be
usefully implemented outside of the blanket impl given here.
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2014-11-02 15:25:38 -08:00 |
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