Build Failure on ports-10.11_x86_64: macos-fortress, macos-fortress-proxy, stack

[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/39609
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    macos-fortress
Subport list:
	- macos-fortress-dshield
	- macos-fortress-emergingthreats
	- macos-fortress-pf
	- macos-fortress-hosts
	- macos-fortress-proxy
	- macos-fortress
Variants:     None
Revision:     889b95ac250f502cee545e36f5f07b353d721bf5
Build time:   0:19:03
Author:       Steven Thomas Smith <s.t.smith at ieee.org>

Log from failed builds:
	Building 'macos-fortress-proxy' ... [ERROR] (failed to install dependency 'stack')
	> maintainers: s.t.smith at ieee.org,s.t.smith at ieee.org.
	Building 'macos-fortress' ... [ERROR] (failed to install dependency 'stack')
	> maintainers: s.t.smith at ieee.org,s.t.smith at ieee.org.

Broken ports:
	- macos-fortress
	- macos-fortress-proxy
	- stack

Responsible maintainers:
	- s.t.smith at ieee.org

Links to individual build jobs:
- ports-10.11_x86_64-builder #125557
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125557
- ports-10.11_x86_64-builder #125558
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125558
- ports-10.11_x86_64-builder #125559
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125559
- ports-10.11_x86_64-builder #125560
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125560
- ports-10.11_x86_64-builder #125561
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125561
- ports-10.11_x86_64-builder #125562
  https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/125562

-- 
Best regards,
MacPorts Buildbot
https://build.macports.org/