Build Failure on ports-10.7_x86_64_legacy: crystal

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.7_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.7_x86_64_legacy-watcher/builds/26892
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    crystal
Subport list:
	- crystal
Variants:     None
Revision:     93cd407592f412a8a1d317177bc879def566132f
Build time:   0:07:39
Author:       Chris Jones <jonesc at macports.org>

Log from failed builds:
	Building 'crystal' ... [ERROR]
	> maintainers: mohd.akram at outlook.com.

Broken ports:
	- crystal

Responsible maintainers:
	- mohd.akram at outlook.com

Links to individual build jobs:
- ports-10.7_x86_64_legacy-builder #108510
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/108510

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