[MacPorts] #60438: ports that use rust no longer able to build universal with i386

[MacPorts]

#60438: ports that use rust no longer able to build universal with i386
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  Reporter:  ryandesign                          |      Owner:  (none)
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:  2.6.2
Resolution:                                      |   Keywords:
      Port:  rust librsvg racer geckodriver      |
  newsboat sequoia-pgp                           |
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Comment (by Gcenx):

 I know this ticket is half a year old but just Incase anyone else runs
 into this.

 The easy solution is to force downgrade the cargo/rust Portfiles using a
 local Portfile repository just place yours above the macports default.

 There is another options that doesn’t seem to have been considered
 however. Rust requires rust to compile itself aka a bootstrap, what’s
 stopping us from using rust version 1.41.1 to compile the very latest
 version?

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Ticket URL: <https://trac.macports.org/ticket/60438#comment:2>
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