Build Failure on ports-10.11_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.11_x86_64
Full logs:    https://build.macports.org/builders/ports-10.11_x86_64-watcher/builds/17949
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-yt
Subport list:
	- py37-yt
Variants:     None
Revision:     f7616d5d7b9236dc3b91448bb6e3d59c65ff5450
Build time:   0:28:24
Author:       Leo Singer <aronnax at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #63855
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63855

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MacPorts Buildbot
https://build.macports.org/