* dataset: add features to fs-err
Reason: fix `cargo check --all-targets -p dataset`. Feature unification
pulls `fs-err/debug` + `fs-err/tokio` without `fs-err/debug_tokio`.
* dataset: run `cargo metadata` to get target dir
Reason: avoid re-downloading in separate worktrees. The old
`cargo locate-project` ignores custom target dirs.
* sparse/benches/search: cache vectors/indices
* Bump Rust edition to 2024
* gen is a reserved keyword now
* Remove ref mut on references
* Mark extern C as unsafe
* Wrap unsafe function bodies in unsafe block
* Geo hash implements Copy, don't reference but pass by value instead
* Replace secluded self import with parent
* Update execute_cluster_read_operation with new match semantics
* Fix lifetime issue
* Replace map_or with is_none_or
* set_var is unsafe now
* Reformat
* copy-paste blob_storage
* get rid of copied utils
* fix clippy
* fmt
* audit blob_store manifest
* move `Payload` into `fixtures.rs`
* fix clippy
* put csv in google storage
* ignore hm test
* fix codespell
* improve files test
* test different block sizes
* remove unused deps
* replace StdRng with SmallRng for faster tests
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