ethantang93 commented on code in PR #10884:
URL: https://github.com/apache/arrow-rs/pull/10884#discussion_r3883409279


##########
CONTRIBUTING.md:
##########
@@ -166,6 +166,38 @@ parquet files run the following from the top-level 
`arrow-rs` directory:
 cargo fmt -p parquet -- --check --config skip_children=true `find ./parquet 
-name "*.rs" \! -name format.rs`
 ```
 
+## Miri
+
+Run tests under [`Miri`](https://github.com/rust-lang/miri) like so, assuming
+[`cargo-nextest`](https://nexte.st/) is available:
+
+```sh
+# Run all tests
+MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-no-extra-rounding-error" cargo 
+nightly miri nextest run
+# Run specific tests
+MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-no-extra-rounding-error" cargo 
+nightly miri nextest run -p arrow-buffer --lib bigint

Review Comment:
   ```suggestion
   # Run specific tests
   MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-no-extra-rounding-error" cargo 
+nightly miri nextest run -p arrow-buffer --lib bigint
   # Run specific crate
   MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-no-extra-rounding-error" cargo 
+nightly miri nextest run -p arrow-buffer
   ```
   maybe add this too for convenience



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