[MacPorts] #65611: py36-setuptools is broken on GitHub CI

[MacPorts]

#65611: py36-setuptools is broken on GitHub CI
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  Reporter:  catap            |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  py36-setuptools  |
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Comment (by jmroot):

 This is at least two bugs: why did CI build setuptools from source instead
 of using the binary? And why wasn't it installed in the correct step along
 with the rest of the dependencies?
 {{{
  Installing 3 dependencies of py36-hypothesis:
   python36 +optimizations
   py36-attrs
   py36-sortedcontainers

   Installing dependency (1 of 3) 'python36' with variants '+optimizations'
 ... [OK]
   Installing dependency (2 of 3) 'py36-attrs' with variants '' ... [OK]
   Installing dependency (3 of 3) 'py36-sortedcontainers' with variants ''
 ... [OK]
 }}}

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Ticket URL: <https://trac.macports.org/ticket/65611#comment:1>
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