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/12022
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    esmf
Subport list:
	- esmf
Variants:     None
Revision:     7e652088b400a90e046e00897769e3a0c59f1848
Build time:   14:11:05
Author:       Takeshi Enomoto <takeshi at macports.org>

Log from failed builds:

Links to individual build jobs:
- jobs-mirror #1232
  https://build.macports.org/builders/jobs-mirror/builds/1232

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