Second batch of the #[serial] sweep started in #6209. nextest is the
repository's authoritative runner and executes every test in its own
process, so serial_test's in-process mutex cannot serialize tests against
each other -- docs/testing/README.md documents this, and the mechanism
that actually serializes across the process boundary is a
.config/nextest.toml [test-groups] entry with max-threads = 1.
Unlike the first batch (e2e, process-isolated by construction), these are
in-crate unit tests that could genuinely share process state under the
`cargo test` fallback runner, where #[serial] IS still effective. Every
marker was therefore reviewed individually and removed only where the
test provably touches neither the process environment nor a process-global.
Removed (47, pure deletions, no test bodies touched):
crates/lifecycle/src/core.rs 35
crates/scanner/src/scanner.rs 12
The lifecycle removals are all validate_* / filter_rules_* /
has_active_rules_* / noncurrent_versions_expiration_limit_* tests that
build a local BucketLifecycleConfiguration and call a &self method
walking only that value. The scanner removals are pure duration
arithmetic (randomized_cycle_delay_for, initial_scanner_delay_for with an
explicit Some(secs), the bitrot-disabled early return of
scanner_clean_idle_max_interval) and background_heal_info_for_scan_complete
/ _for_scan_result field comparisons over locally built values.
Retained deliberately -- see the PR body for the full list and reasons:
crates/ecstore/src/bucket/lifecycle/bucket_lifecycle_ops.rs 101 (all)
crates/lifecycle/src/core.rs 44
crates/scanner/src/scanner.rs 53
bucket_lifecycle_ops.rs keeps every marker: its test module caches a
process-wide `static STALE_MULTIPART_TEST_ENV: OnceLock<(Vec<PathBuf>,
Arc<ECStore>)>`, and its own reregister_env_local_disks helper documents
in-tree that sibling #[serial] tests reset and reshape the shared
local-disk registry for each other. That sharing is real, so the markers
stay.
No test was renamed, added, or deleted; no reserved migration-gate name
substring is affected; no .config/nextest.toml entry references any of
the 47 removed tests.
