0.19.0 adds two restart_waiter tests that run `sh -c 'while kill -0 "$1"; do sleep; done'` with the pid u32::MAX. Arch's sh is bash 5.3, whose kill builtin in POSIX mode prints "not a pid or valid job spec" for that number but exits 0, so the loop never ends; every droplet build of 0.19.0 sat there until the 180-minute job timeout. Upstream CI runs on Ubuntu, where sh is dash and rejects the number.
It also adds ownership_probe_errors_disable_in_place_updates, which points the pacman path at a directory and expects Command::output() to fail. aarch64 builds run under QEMU user-mode emulation, where glibc's posix_spawn cannot observe the child's failed execve; the spawn succeeds with exit 127 and the assertion fails. Skipped on aarch64 only; it passes natively.
Both skips carry comments; the sync bot rewrites only version fields, so they survive future syncs.
Ryan Hughes
1c0ea5be84