Build Failure on ports-10.11_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.11_x86_64
Full logs:    https://build.macports.org/builders/ports-10.11_x86_64-watcher/builds/20796
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-gwpy
Subport list:
	- py27-gwpy
	- py-gwpy
	- py36-gwpy
	- py37-gwpy
Variants:     None
Revision:     14594ca19592fd2e5850f1fbdd3ad99fad96c097
Build time:   0:52:21
Author:       Duncan Macleod <duncan.macleod at ligo.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #74145
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/74145
- ports-10.11_x86_64-builder #74146
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/74146
- ports-10.11_x86_64-builder #74147
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/74147
- ports-10.11_x86_64-builder #74148
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/74148

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