[tor-bugs] #26337 [Core Tor/Tor]: make rust error types use the failure crate

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#26337: make rust error types use the failure crate
-------------------------------------------------+-------------------------
 Reporter:  isis                                 |          Owner:  (none)
     Type:  enhancement                          |         Status:  new
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  rust, technical-debt, tor-           |  Actual Points:
  modularity, 035-removed-20180711               |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor8-can
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Comment (by chelseakomlo):

 Replying to [comment:4 cypherpunks3]:
 > Replying to [comment:1 chelseakomlo]:
 > > Is this going to be incorporated into the Rust standard library? If
 so, should we wait for it?
 >
 > [https://github.com/rust-lang-
 nursery/failure/commit/cad26ae30f8fb0ab3c119bc8589dd0bfc1029633 Nobody
 knows for sure. It's in flux apparently.] The "1.0 soon" plan was
 canceled.
 >
 > Also, should this be a child ticket of #25628?

 Thanks- I think waiting to see how this evolves is a good idea. I'll set
 this to "needs more information" for now.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26337#comment:5>
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