[MacPorts] #64686: rust-1.58.1_1.darwin_18.x86_64.tbz2 fails to build

[MacPorts]

#64686: rust-1.58.1_1.darwin_18.x86_64.tbz2 fails to build
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 Reporter:  squiggledid  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:  rust
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 main.log attached

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Ticket URL: <https://trac.macports.org/ticket/64686>
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