Build Failure on ports-10.7_x86_64_legacy

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.7_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.7_x86_64_legacy-watcher/builds/26742
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:     3a3a79719f687963626e35e7c2a7fa4810ba84b4
Build time:   0:31:25
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.7_x86_64_legacy-builder #108115
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108115
- ports-10.7_x86_64_legacy-builder #108116
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108116
- ports-10.7_x86_64_legacy-builder #108117
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108117
- ports-10.7_x86_64_legacy-builder #108118
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108118
- ports-10.7_x86_64_legacy-builder #108119
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108119
- ports-10.7_x86_64_legacy-builder #108120
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108120
- ports-10.7_x86_64_legacy-builder #108121
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108121

-- 
Best regards,
MacPorts Buildbot
https://build.macports.org/