[MacPorts] #52247: rust 1.11.0 build hangs indefinitely on macos 10.12 (Sierra)

[MacPorts]

#52247: rust 1.11.0 build hangs indefinitely on macos 10.12 (Sierra)
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  Reporter:  r.keoni@…  |      Owner:  g5pw
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.3.4
Resolution:             |   Keywords:  sierra
      Port:  rust       |
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Comment (by hmeine):

 With 1.12, cargo does not build, apparently due to too strict linting.
 (At least, rust itself builds again on Sierra.)

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Ticket URL: <https://trac.macports.org/ticket/52247#comment:12>
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