PThorpe92:mvcc_clones

Remove some clones from MVCC code

Identified Rust project with existing criterion benchmarks

CodSpeed supports Rust with criterion - compatibility confirmed

Checked latest versions - ready to add dependencies

Added codspeed-criterion-compat to workspace and package dependencies

Successfully migrated all criterion benchmarks to use CodSpeed

Successfully updated Cargo.lock with codspeed-criterion-compat

Successfully created GitHub Actions workflow and added CodSpeed badge

Successfully downloaded codspeed-criterion-compat dependencies

Successfully submitted PR payload for CodSpeed integration

There was an issue processing benchmarks in CI