Build Failure on ports-10.13_x86_64: volk-gnss-sdr-next, xz, zabbix4, zabbix4-agent, zabbix4-frontend

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.13_x86_64
Full logs:    https://build.macports.org/builders/ports-10.13_x86_64-watcher/builds/17395
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    zabbix4
Subport list:
	- zabbix4-frontend
	- zabbix4
	- zabbix4-agent
Variants:     None
Revision:     4a29ac7a7402ca82ff5b8754da3dd1c67f9dbdca
Build time:   0:04:22
Author:       Eric A. Borisch <eborisch at macports.org>

Log from failed builds:
	Building 'volk-gnss-sdr-next' ... [ERROR] (failed to install dependency 'xz')
	> maintainers: michaelld at macports.org,carles.fernandez at gmail.com,ryandesign at macports.org.
	Building 'zabbix4-frontend' ... [ERROR] (failed to archivefetch dependency 'libxml2').
	Building 'zabbix4' ... [ERROR] (failed to archivefetch dependency 'libxml2').
	Building 'zabbix4-agent' ... [ERROR] (failed to archivefetch dependency 'libxml2').

Broken ports:
	- volk-gnss-sdr-next
	- xz
	- zabbix4
	- zabbix4-agent
	- zabbix4-frontend

Responsible maintainers:
	- carles.fernandez at gmail.com
	- michaelld at macports.org
	- ryandesign at macports.org

Links to individual build jobs:
- ports-10.13_x86_64-builder #61388
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/61388
- ports-10.13_x86_64-builder #61389
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/61389
- ports-10.13_x86_64-builder #61390
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/61390

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