Build Failure on ports-10.11_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.11_x86_64
Full logs:    https://build.macports.org/builders/ports-10.11_x86_64-watcher/builds/28550
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    xar root6 py-gnureadline py-metakernel
Subport list:
	- py38-gnureadline
	- py38-metakernel
	- root6
Variants:     None
Revision:     6a16b21d7264a0dcfe41283318e840a1d525c449
Build time:   1:27:27
Author:       Chris Jones <jonesc at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.11_x86_64-builder #99143
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/99143
- ports-10.11_x86_64-builder #99144
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/99144
- ports-10.11_x86_64-builder #99145
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/99145

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