Build Failure on ports-10.7_x86_64_legacy: libusb, yubikey-manager

[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/13571
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    py-pyscard yubikey-manager
Subport list:
	- py27-pyscard
	- py-pyscard
	- py35-pyscard
	- py36-pyscard
	- yubikey-manager
Variants:     None
Revision:     04aaee25e63bc53bd4156f7f95c7ff333e5c4001
Build time:   0:09:14
Author:       Aaron Madlon-Kay <aaron at madlon-kay.com>

Log from failed builds:
	Building 'yubikey-manager' ... [ERROR] (failed to install dependency 'libusb')
	> maintainers: aaron+macports at madlon-kay.com,michaelld at macports.org,toby at macports.org.

Broken ports:
	- libusb
	- yubikey-manager

Responsible maintainers:
	- aaron+macports at madlon-kay.com
	- michaelld at macports.org
	- toby at macports.org

Links to individual build jobs:
- jobs-mirror #4205
  https://build.macports.org/builders/jobs-mirror/builds/4205

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