[MacPorts] #60919: Inkscape port failed to install (upgrade) with the message "Processing of port inkscape failed"

[MacPorts]

#60919: Inkscape port failed to install (upgrade)  with the message "Processing of
port inkscape failed"
---------------------+----------------------------
 Reporter:  delphym  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:  MacPorts 2.7.0
Component:  ports    |    Version:  2.6.3
 Keywords:           |       Port:  inkscape
---------------------+----------------------------
 Hi there, after a while I performed `sudo port selfupdate; sudo port
 upgrade outdated`
 The process ended up with a few warnings and failure to install
 '''inkscape''' port.
 Following the documentation about ''port installation'' process
 (https://guide.macports.org/#using.port.install) I repeated the
 installation process:
 1. ```sudo port clean inkscape```
 2. ```sudo port -t install inkscape```

 which failed again, so I'm providing the ```main.log``` from the install
 process.

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Ticket URL: <https://trac.macports.org/ticket/60919>
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