Build Failure on ports-10.8_x86_64_legacy

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.8_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.8_x86_64_legacy-watcher/builds/25363
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:   0:21:21
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.8_x86_64_legacy-builder #96631
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96631
- ports-10.8_x86_64_legacy-builder #96632
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96632
- ports-10.8_x86_64_legacy-builder #96633
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96633
- ports-10.8_x86_64_legacy-builder #96634
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96634
- ports-10.8_x86_64_legacy-builder #96635
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96635
- ports-10.8_x86_64_legacy-builder #96636
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96636
- ports-10.8_x86_64_legacy-builder #96637
  https://build.macports.org/builders/ports-10.8_x86_64_legacy-builder/builds/96637

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