[MacPorts] #55962: rust @1.24.0: universal variant does not build universal

[MacPorts]

#55962: rust @1.24.0: universal variant does not build universal
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  g5pw
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  haspatch
      Port:  rust        |
-------------------------+----------------------

Comment (by ryandesign):

 Oh—the `revision` of the main port will need to be increased, since this
 changes what gets installed in some situations (specifically, when the
 universal variant was chosen). (The `revision` of the subport probably
 shouldn't be increased because I don't think its contents would change.)

 It does work at least as far as:

 {{{
 $ rustc --version
 rustc 1.24.1
 $ arch -i386 rustc --version
 rustc 1.24.1
 }}}

 Before your changes, it was:

 {{{
 $ rustc --version
 rustc 1.24.1
 $ arch -i386 rustc --version
 arch: posix_spawnp: rustc: Bad CPU type in executable
 }}}

--
Ticket URL: <https://trac.macports.org/ticket/55962#comment:5>
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