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/25470
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:     6a4e58280d04e0c2c89e533330553bf5ff20f9a1
Build time:   0:29:35
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.7_x86_64_legacy-builder #104618
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104618
- ports-10.7_x86_64_legacy-builder #104619
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104619
- ports-10.7_x86_64_legacy-builder #104620
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104620
- ports-10.7_x86_64_legacy-builder #104621
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104621
- ports-10.7_x86_64_legacy-builder #104622
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104622
- ports-10.7_x86_64_legacy-builder #104623
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104623
- ports-10.7_x86_64_legacy-builder #104624
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/104624

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