Build Failure on ports-10.15_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.15_x86_64
Full logs:    https://build.macports.org/builders/ports-10.15_x86_64-watcher/builds/976
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-matplotlib
Subport list:
	- py37-matplotlib
	- py-matplotlib
	- py36-matplotlib
	- py38-matplotlib
Variants:     None
Revision:     3fe0ddc6156bd3b2c9f723df629b1be4e7078cce
Build time:   0:26:54
Author:       Renee Otten <reneeotten at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.15_x86_64-builder #6727
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/6727
- ports-10.15_x86_64-builder #6728
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/6728
- ports-10.15_x86_64-builder #6729
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/6729
- ports-10.15_x86_64-builder #6730
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/6730

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