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/26513
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:   0:26:38
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #91386
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91386
- ports-10.11_x86_64-builder #91387
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91387
- ports-10.11_x86_64-builder #91388
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91388
- ports-10.11_x86_64-builder #91389
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91389
- ports-10.11_x86_64-builder #91390
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91390
- ports-10.11_x86_64-builder #91391
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91391
- ports-10.11_x86_64-builder #91392
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/91392

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