mosquitto @2.0.9: tests can't run

[ryandesign (Ryan Carsten Schmidt)]

sudo port test mosquitto

--->  Testing mosquitto
DEBUG: Executing proc-pre-org.macports.test-test-0
Error: Failed to test mosquitto: error copying "/opt/local/var/macports/build/_Volumes_Shared_macports-ports_net_mosquitto/mosquitto/work/mosquitto-2.0.9/lib/mosquitto.h": no such file or directory
DEBUG: Error code: NONE
DEBUG: Backtrace: error copying "/opt/local/var/macports/build/_Volumes_Shared_macports-ports_net_mosquitto/mosquitto/work/mosquitto-2.0.9/lib/mosquitto.h": no such file or directory
    while executing
"$pre $targetname"
Error: See /opt/local/var/macports/logs/_Volumes_Shared_macports-ports_net_mosquitto/mosquitto/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port mosquitto failed