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/17827
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-imread py-vega py-mahotas py-mpld3
Subport list:
	- py27-vega
	- py-vega
	- py36-vega
	- py37-imread
	- py37-mahotas
	- py37-mpld3
	- py37-vega
Variants:     None
Revision:     c7e648a2beac1057e1771f8429efb873490b0fd9
Build time:   0:57:28
Author:       Andrew Stromnov <stromnov at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #63500
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63500
- ports-10.11_x86_64-builder #63501
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63501
- ports-10.11_x86_64-builder #63502
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63502
- ports-10.11_x86_64-builder #63503
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63503
- ports-10.11_x86_64-builder #63504
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63504
- ports-10.11_x86_64-builder #63505
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63505
- ports-10.11_x86_64-builder #63506
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/63506

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