Build Failure on ports-10.15_x86_64: p5.26-gnupg-interface, p5.28-gnupg-interface, p5.30-gnupg-interface

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.15_x86_64
Full logs:    https://build.macports.org/builders/ports-10.15_x86_64-watcher/builds/5395
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    p5-gnupg-interface
Subport list:
	- p5.26-gnupg-interface
	- p5.28-gnupg-interface
	- p5.30-gnupg-interface
Variants:     None
Revision:     2bbbe28ceec3ca7e7a0a1e095d5cd82e49a3a5bb
Build time:   0:01:58
Author:       David B. Evans <devans at macports.org>

Log from failed builds:
	Building 'p5.26-gnupg-interface' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .
	Building 'p5.28-gnupg-interface' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .
	Building 'p5.30-gnupg-interface' ... [ERROR] (failed to calculate dependencies)
	> maintainers: .

Broken ports:
	- p5.26-gnupg-interface
	- p5.28-gnupg-interface
	- p5.30-gnupg-interface

Links to individual build jobs:
- ports-10.15_x86_64-builder #30600
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/30600
- ports-10.15_x86_64-builder #30601
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/30601
- ports-10.15_x86_64-builder #30602
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/30602

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