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/15858
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-gwpy
Subport list:
	- py27-gwpy
	- py-gwpy
	- py36-gwpy
Variants:     None
Revision:     99673b20b2ffd9b387d9d361fba86b624139d60a
Build time:   0:26:11
Author:       Duncan Macleod <duncan.macleod at ligo.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #58083
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/58083
- ports-10.11_x86_64-builder #58084
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/58084
- ports-10.11_x86_64-builder #58085
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/58085

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