Hello Jochen. Your NMU for this package has finally reached unstable but now the autobuilder hangs:
E: Build killed with signal TERM after 150 minutes of inactivity https://buildd.debian.org/status/package.php?p=bup Note 1: This also happens in my setup. Note 2: Apparently the Closes statement in the changelog did not work, so we can reuse this bug for the current hang. Thanks.

