[MacPorts] #65011: cargo: 0.61.1 fails to build for 10.12 and earlier

[MacPorts]

#65011: cargo: 0.61.1 fails to build for 10.12 and earlier
----------------------+-------------------------
  Reporter:  mascguy  |      Owner:  herbygillot
      Type:  defect   |     Status:  assigned
  Priority:  High     |  Milestone:
 Component:  ports    |    Version:  2.7.2
Resolution:           |   Keywords:
      Port:  cargo    |
----------------------+-------------------------
Changes (by tehcog):

 * Attachment "cargo_mavericks_main.log" added.

 mavericks main.log

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Ticket URL: <https://trac.macports.org/ticket/65011>
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