David Tolnay 4c90bc48f7 rust: Replace implementation of failure_ext to remove failure dependency ... Summary: This diff changes failure_ext::Error from reexporting failure::Error to anyhow::Error instead. Failure's error type requires all errors to have an implementation of failure's own failure::Fail trait in order for cause chains and backtraces to work. The necessary methods for this functionality have made their way into the standard library error trait, so modern error libraries build directly on std::error::Error rather than something like failure::Fail. Once we are no longer tied to failure 0.1's Fail trait, different parts of the codebase will be free to use any std::error::Error-based libraries they like while still working nicely together. Sadly this diff is not the end of the remove-failure stack, it is near the middle. This diff is the point where we've made failure look as much as possible like anyhow and made anyhow look as much like failure via failure_ext, such that we can atomically cut over with a relatively small diff. That means some of the code here isn't necessarily idiomatic. Later diffs will follow up on removing failurisms like the bail_err / bail_msg / ensure_err / ensure_msg distinction which should no longer be necessary. Reviewed By: Imxset21 Differential Revision: D18577341 fbshipit-source-id: 5689c3c9ddeaa79a123e710831986cf4656a5205		2019-11-22 09:27:59 -08:00
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client/src	Rename rust client_async module to plain client	2019-11-08 14:22:16 -08:00
fastlog/src	rust: Replace derive(Fail) with derive(Error)	2019-11-14 22:04:37 -08:00
if	Rename rust2 code generator to rust	2019-11-04 13:06:55 -08:00
src	rust: Replace implementation of failure_ext to remove failure dependency	2019-11-22 09:27:59 -08:00