[tor-bugs] #25895 [Core Tor/Tor]: Cross-compiling tor rust for Windows is broken

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#25895: Cross-compiling tor rust for Windows is broken
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  Hello71
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.3.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  rust, 034-proposed, tbb-wants,       |  Actual Points:
  033-backport, 034-roadmap-proposed,  034-must  |
Parent ID:  #25849                               |         Points:
 Reviewer:  catalyst                             |        Sponsor:
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Comment (by catalyst):

 Replying to [comment:20 Hello71]:
 > Rebased. https://cgit.alxu.ca/tor.git/diff/?id=rust-cross&id2=master. I
 don't like GitHub. I use Travis grudgingly. https://travis-
 ci.org/Hello71/tor/builds/392516161

 Thanks!

 > +# not a no-op, fixes out-of-source builds
 > +target-dir = './target'

 Could you please explain the details of what this fixes for out-of-souce-
 dir builds?  Is it `cargo build` or `cargo test` that fails?  Online or
 offline Rust dependencies?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25895#comment:22>
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