ErrorKind: rename Transient → Unexpected and revise uses of Unavailable#255

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dhardy merged 2 commits intorust-random:masterfrom

Feb 27, 2018

Commits on Feb 26, 2018

Error handling revisions
dhardy
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Commits on Feb 27, 2018

Error handling: all IO errors other than Interrupted and WouldBlock are hard errors
dhardy
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