Build Failure on ports-10.7_x86_64_legacy: protobuf3-cpp

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.7_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.7_x86_64_legacy-watcher/builds/14790
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    protobuf3-cpp
Subport list:
	- protobuf3-cpp
Variants:     None
Revision:     14219e973a20c05f33c5d6c6887e0cc6aaf683b9
Build time:   0:11:44
Author:       Ken Cunningham <kencu at macports.org>

Log from failed builds:
	Building 'protobuf3-cpp' ... [ERROR]
	> maintainers: blair at macports.org.

Broken ports:
	- protobuf3-cpp

Responsible maintainers:
	- blair at macports.org

Links to individual build jobs:
- ports-10.7_x86_64_legacy-builder #65906
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/65906

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