Build Failure on ports-10.6_i386_legacy: py27-protobuf3, py35-protobuf3, py36-protobuf3

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_i386_legacy
Full logs:    https://build.macports.org/builders/ports-10.6_i386_legacy-watcher/builds/13621
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-backports.weakref py-tensorflow py-protobuf3 py-graveyard py-absl py-tensorflow-tensorboard
Subport list:
	- py27-protobuf3
	- py35-protobuf3
	- py36-protobuf3
Variants:     None
Revision:     7aa502a7cd833fdb7a809ae4b12cc43a6fc2c3c9
Build time:   0:29:51
Author:       Enrico M. Crisostomo <enrico.m.crisostomo at gmail.com>

Log from failed builds:
	Building 'py27-protobuf3' ... [ERROR]
	> maintainers: .
	Building 'py35-protobuf3' ... [ERROR]
	> maintainers: .
	Building 'py36-protobuf3' ... [ERROR]
	> maintainers: .

Broken ports:
	- py27-protobuf3
	- py35-protobuf3
	- py36-protobuf3

Links to individual build jobs:
- jobs-mirror #4886
  https://build.macports.org/builders/jobs-mirror/builds/4886

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