Build Failure on ports-10.6_x86_64: shellcheck, stack

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_x86_64
Full logs:    https://build.macports.org/builders/ports-10.6_x86_64-watcher/builds/5601
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    shellcheck
Subport list:
	- shellcheck
Variants:     None
Revision:     c1aa0c336036a749058effe7c8c32c3eab0ebd0e
Build time:   0:01:55
Author:       i0ntempest <szf1234 at me.com>

Log from failed builds:
	Building 'shellcheck' ... [ERROR] (failed to install dependency 'stack')
	> maintainers: cal at macports.org,s.t.smith at ieee.org.

Broken ports:
	- shellcheck
	- stack

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

Links to individual build jobs:
- ports-10.6_x86_64-builder #23967
  https://build.macports.org/builders/ports-10.6_x86_64-builder/builds/23967

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