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/25098
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:     beb8f4857561816d017325ff31b8ed4b4c2c8591
Build time:   0:30:42
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #87763
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87763
- ports-10.11_x86_64-builder #87764
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87764
- ports-10.11_x86_64-builder #87765
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87765
- ports-10.11_x86_64-builder #87766
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87766
- ports-10.11_x86_64-builder #87767
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87767
- ports-10.11_x86_64-builder #87768
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87768
- ports-10.11_x86_64-builder #87769
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/87769

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