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/23309
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:     67d35ddfe3e9ffdb1e213567d836c69ee61c3e58
Build time:   0:43:24
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.12_x86_64-builder #91070
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91070
- ports-10.12_x86_64-builder #91071
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91071
- ports-10.12_x86_64-builder #91072
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91072
- ports-10.12_x86_64-builder #91073
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91073
- ports-10.12_x86_64-builder #91074
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91074
- ports-10.12_x86_64-builder #91075
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91075
- ports-10.12_x86_64-builder #91076
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/91076

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