close Warning: Failed to sync with repository "(default)": [Errno 12] Cannot allocate memory; repository information may be out of date. Look in the Trac log for more information including mitigation strategies.

Oops…

Trac detected an internal error:
OSError: [Errno 12] Cannot allocate memory

There was an internal error in Trac. It is recommended that you notify your local Trac administrator with the information needed to reproduce the issue.

To that end, you could a ticket.

The action that triggered the error was:

GET: /changeset/55bc71e550bc798a8edf968474e4642c3f79ba63

TracGuide — The Trac User and Administration Guide