Build Failure on ports-10.13_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.13_x86_64
Full logs:    https://build.macports.org/builders/ports-10.13_x86_64-watcher/builds/12948
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    llvm-3.4 llvm-3.7 llvm-5.0 llvm-3.9 llvm-4.0
Subport list:
	- clang-3.4
Variants:     None
Revision:     dab380ad6822e28a6eca6943000ed5e8390e4592
Build time:   0:03:55
Author:       kencu <ken.cunningham.webuse at gmail.com>

Log from failed builds:
	Fetching 'clang-3.4' ... [ERROR]
	> maintainers: jeremyhu at macports.org,larryv at macports.org.

Links to individual build jobs:
- ports-10.13_x86_64-builder #49550
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/49550

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