buildbot exception in MacPorts on jobs-mirror

[buildbot at macports.org]

The Buildbot has detected a build exception on builder jobs-mirror while building MacPorts. Full details are available at:
    https://build.macports.org/builders/jobs-mirror/builds/961

Buildbot URL: https://build.macports.org/

Buildslave for this Build: jobs

Build Reason: The Triggerable scheduler named 'mirror' triggered this build
Build Source Stamp: HEAD
Blamelist: 

BUILD FAILED: exception mirror

Sincerely,
 -The Buildbot