Build Failure on ports-10.12_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.12_x86_64
Full logs:    https://build.macports.org/builders/ports-10.12_x86_64-watcher/builds/25497
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:     397d12dcd528be8d8bc13af3109e990b36c91f15
Build time:   0:35:27
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.12_x86_64-builder #96201
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96201
- ports-10.12_x86_64-builder #96202
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96202
- ports-10.12_x86_64-builder #96203
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96203
- ports-10.12_x86_64-builder #96204
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96204
- ports-10.12_x86_64-builder #96205
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96205
- ports-10.12_x86_64-builder #96206
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96206
- ports-10.12_x86_64-builder #96207
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/96207

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