Build Failure on ports-10.9_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.9_x86_64
Full logs:    https://build.macports.org/builders/ports-10.9_x86_64-watcher/builds/24132
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-acme certbot certbot-apache certbot-nginx
Subport list:
	- py27-acme
	- certbot
	- certbot-apache
	- certbot-nginx
	- py-acme
	- py36-acme
	- py37-acme
Variants:     None
Revision:     45cae83a24b0141f522df5bafa48bec2cd31e4ac
Build time:   0:25:18
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.9_x86_64-builder #87877
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87877
- ports-10.9_x86_64-builder #87878
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87878
- ports-10.9_x86_64-builder #87879
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87879
- ports-10.9_x86_64-builder #87880
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87880
- ports-10.9_x86_64-builder #87881
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87881
- ports-10.9_x86_64-builder #87882
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87882
- ports-10.9_x86_64-builder #87883
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/87883

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