[MacPorts] #44584: [NEW] add a Cargo port

[MacPorts]

#44584: [NEW] add a Cargo port
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  Reporter:  macports.org@…  |      Owner:  g5pw@…
      Type:  request         |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:  rust
      Port:  cargo           |
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Comment (by joshmoz@…):

 Any chance this will work now? Would love to have rust-1.1 and cargo in
 macports!

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Ticket URL: <https://trac.macports.org/ticket/44584#comment:9>
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