[MacPorts] #54323: rust: update to 1.18.0

[MacPorts]

#54323: rust: update to 1.18.0
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 Reporter:  sierkb  |      Owner:
     Type:  update  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  rust
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 Please update the rust port to version 1.18.0.

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Ticket URL: <https://trac.macports.org/ticket/54323>
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