Build Failure on ports-10.5_ppc_legacy

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.5_ppc_legacy
Full logs:    https://build.macports.org/builders/ports-10.5_ppc_legacy-watcher/builds/15494
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-attrs py-more-itertools py-setuptools_scm
Subport list:
	- py37-attrs
	- py37-more-itertools
	- py37-setuptools_scm
Variants:     None
Revision:     1c4535736114d4bf375a1a79073ea91b7c19591b
Build time:   0:18:00
Author:       Chih-Hsuan Yen <yan12125 at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.5_ppc_legacy-builder #68536
  https://build.macports.org/builders/ports-10.5_ppc_legacy-builder/builds/68536
- ports-10.5_ppc_legacy-builder #68537
  https://build.macports.org/builders/ports-10.5_ppc_legacy-builder/builds/68537
- ports-10.5_ppc_legacy-builder #68538
  https://build.macports.org/builders/ports-10.5_ppc_legacy-builder/builds/68538

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