[MacPorts] #39562: can't set "compiler.blacklist": child killed

[MacPorts]

#39562: can't set "compiler.blacklist": child killed
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 Reporter:  pleburan45@…  |      Owner:  macports-tickets@…
     Type:  defect        |     Status:  new
 Priority:  High          |  Milestone:
Component:  ports         |    Version:  2.1.3
 Keywords:                |       Port:
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 today when I am upgrade macport there was error message:

 Error: Unable to open port: can't set "compiler.blacklist": child killed:
 segmentation violation

 what should I do?
 there is no other files or attachment

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Ticket URL: <https://trac.macports.org/ticket/39562>
MacPorts <http://www.macports.org/>
Ports system for OS X