Build Failure on ports-10.15_x86_64: vulkan-loader, vulkan-tools, vulkan-validationlayers

[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/8764
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    vulkan-tools vulkan-validationlayers vulkan-loader vulkan-headers spirv-tools glslang
Subport list:
	- vulkan-loader
	- vulkan-tools
	- vulkan-validationlayers
Variants:     None
Revision:     5f2f96a772e2875e3445f7567f55a2d9aded7429
Build time:   0:08:58
Author:       Christopher Chavez <chrischavez at gmx.us>

Log from failed builds:
	Building 'vulkan-loader' ... [ERROR]
	> maintainers: .
	Building 'vulkan-tools' ... [ERROR] (failed to install dependency 'vulkan-loader')
	> maintainers: .
	Building 'vulkan-validationlayers' ... [ERROR] (failed to install dependency 'vulkan-loader')
	> maintainers: .

Broken ports:
	- vulkan-loader
	- vulkan-tools
	- vulkan-validationlayers

Links to individual build jobs:
- ports-10.15_x86_64-builder #37899
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/37899
- ports-10.15_x86_64-builder #37900
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/37900
- ports-10.15_x86_64-builder #37901
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/37901

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