Read the Docs build information Build id: 3825283 Project: canonical-checkbox Version: 2381 Commit: b0efd3210363e7f37e716506c14cec4338184d6c Date: 2026-03-12T15:39:18.580319Z State: finished Success: False [rtd-command-info] start-time: 2026-03-12T15:39:52.408172Z, end-time: 2026-03-12T15:39:57.338435Z, duration: 4, exit-code: 0 git clone --depth 1 https://github.com/canonical/checkbox.git . Cloning into '.'... [rtd-command-info] start-time: 2026-03-12T15:39:57.423153Z, end-time: 2026-03-12T15:39:58.080873Z, duration: 0, exit-code: 0 git fetch origin --force --prune --prune-tags --depth 50 pull/2381/head:external-2381 From https://github.com/canonical/checkbox * [new ref] refs/pull/2381/head -> external-2381 [rtd-command-info] start-time: 2026-03-12T15:39:58.974844Z, end-time: 2026-03-12T15:39:59.016834Z, duration: 0, exit-code: 128 git checkout --force b0efd3210363e7f37e716506c14cec4338184d6c fatal: reference is not a tree: b0efd3210363e7f37e716506c14cec4338184d6c