buildbot exception in MacPorts on ports-11.0_arm64-watcher

[buildbot at macports.org]

The Buildbot has detected a build exception on builder ports-11.0_arm64-watcher while building macports/macports-ports. Full details are available at:
    https://build.macports.org/builders/ports-11.0_arm64-watcher/builds/22

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

Buildslave for this Build: ports-11.0_arm64

Build Reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Build Source Stamp: [branch master] 6ed4b879665f86edd60a90c5e40c5ebf6b7da3b0
Blamelist: Christopher Chavez <chrischavez at gmx.us>

BUILD FAILED: exception

Sincerely,
 -The Buildbot