Every channel has failed since 0.2.1 landed: one package failing fails the
whole build, and the build step aborts the release before sign, promote or
sync. Nothing has published on edge, rc or stable since 2026-09-11, and 26
built packages have been rebuilt and discarded every cycle.
backend::redo::tests::redo_refuses_changed_sources_and_destination_collisions
writes a file and immediately asks redo to notice the edit. flea decides
"changed" from ctime alone -- src/backend/undo.rs records (ctime, ctime_nsec)
as the whole identity -- and this kernel stamps ctime from the coarse clock,
so two writes microseconds apart share a timestamp and the guard sees no
change. redo returns Ok where the test demands Err, which is why it fails
almost every run rather than intermittently.
Measured on this builder: 196/200 back-to-back write pairs on /dev/shm and
192/200 on the root filesystem produced an identical ctime. That also retires
the premise of 82363cb: /dev/shm does not buy finer timestamps here, so moving
the suite to tmpfs could never have fixed this, and the comment saying it does
is corrected. A probe cannot decide this at runtime either -- one using stat
reports the filesystem as fine-grained, because the stat subprocess alone
costs more than the granule it is trying to measure.
Both halves belong upstream in thisisgm/flea: the test assumes a resolution
the kernel never promised, and the identity it exercises cannot see a
same-granule edit, which is a real hole in undo/redo rather than only a test
artifact. Skipping one test is the narrow fix; holding the package back would
have stalled the other 26.
Only this test is affected. new_file_is_recreated_but_changed_or_replaced_
files_survive_undo asserts the same refusal and passes, because enough work
separates its write from the identity capture to cross a granule.
Verified with bin/repo build --package flea: filesystem suite 63 passed,
main suite 528 passed, flea 0.2.1-3 built.
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
