Build Failure on ports-10.7_x86_64: dovecot2, dovecot2-sieve, stack

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.7_x86_64
Full logs:    https://build.macports.org/builders/ports-10.7_x86_64-watcher/builds/1583
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    dovecot2 dovecot2-sieve
Subport list:
	- dovecot2
	- dovecot2-sieve
Variants:     None
Revision:     0f7c521a0779f6814ff9919e577ceaffd733579b
Build time:   0:01:43
Author:       Steven Thomas Smith <s.t.smith at ieee.org>

Log from failed builds:
	Building 'dovecot2' ... [ERROR] (failed to install dependency 'stack')
	> maintainers: s.t.smith at ieee.org.
	Building 'dovecot2-sieve' ... [ERROR] (failed to install dependency 'stack')
	> maintainers: s.t.smith at ieee.org.

Broken ports:
	- dovecot2
	- dovecot2-sieve
	- stack

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

Links to individual build jobs:
- ports-10.7_x86_64-builder #8012
  https://build.macports.org/builders/ports-10.7_x86_64-builder/builds/8012
- ports-10.7_x86_64-builder #8013
  https://build.macports.org/builders/ports-10.7_x86_64-builder/builds/8013

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