Commits
Andy Grove authored 13c334e976f
ARROW-12251: [Rust] Add Ballista to CI Add `cargo build` and `cargo test` steps for Ballista. I will address fmt and clippy separately. Closes #9979 from andygrove/ballista-ci Authored-by: Andy Grove <andygrove73@gmail.com> Signed-off-by: Andy Grove <andygrove73@gmail.com>