Build Failure on ports-10.13_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.13_x86_64
Full logs:    https://build.macports.org/builders/ports-10.13_x86_64-watcher/builds/16965
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:     d027531eb2354af268f9b6b4a2336d0c2af072a9
Build time:   0:34:11
Author:       Marius Schamschula <mps at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.13_x86_64-builder #60358
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60358
- ports-10.13_x86_64-builder #60359
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60359
- ports-10.13_x86_64-builder #60360
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60360
- ports-10.13_x86_64-builder #60361
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60361
- ports-10.13_x86_64-builder #60362
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60362
- ports-10.13_x86_64-builder #60363
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60363
- ports-10.13_x86_64-builder #60364
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/60364

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