Build Failure on ports-10.6_x86_64_legacy

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.6_x86_64_legacy-watcher/builds/24286
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:     45cae83a24b0141f522df5bafa48bec2cd31e4ac
Build time:   0:43:29
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.6_x86_64_legacy-builder #101644
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101644
- ports-10.6_x86_64_legacy-builder #101645
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101645
- ports-10.6_x86_64_legacy-builder #101646
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101646
- ports-10.6_x86_64_legacy-builder #101647
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101647
- ports-10.6_x86_64_legacy-builder #101648
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101648
- ports-10.6_x86_64_legacy-builder #101649
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101649
- ports-10.6_x86_64_legacy-builder #101650
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/101650

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