Build Failure on ports-10.12_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.12_x86_64
Full logs:    https://build.macports.org/builders/ports-10.12_x86_64-watcher/builds/12711
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    gr-ieee802-15-4
Subport list:
	- 
Variants:     None
Revision:     e364a442bb913f0e3a3197e7c2e704f1616c51e6
Build time:   0:00:33
Author:       Michael Dickens <michaelld at macports.org>

Log from failed builds:

Links to individual build jobs:

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