Build Failure on ports-10.12_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.12_x86_64
Full logs:    https://build.macports.org/builders/ports-10.12_x86_64-watcher/builds/15446
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-graveyard py-virtualenv
Subport list:
	- py27-virtualenv
	- py-virtualenv
	- py34-virtualenv
	- py35-virtualenv
	- py36-virtualenv
	- py37-virtualenv
Variants:     None
Revision:     be83b67a0fa270989f2ac4d862aefa3d6f411c89
Build time:   0:17:03
Author:       reneeotten <reneeotten at users.noreply.github.com>

Log from failed builds:

Links to individual build jobs:
- ports-10.12_x86_64-builder #63429
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63429
- ports-10.12_x86_64-builder #63430
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63430
- ports-10.12_x86_64-builder #63431
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63431
- ports-10.12_x86_64-builder #63432
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63432
- ports-10.12_x86_64-builder #63433
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63433
- ports-10.12_x86_64-builder #63434
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/63434

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