j2cl-box2d build script is broken

[jrmuizel]

Built on 2026-04-21 22:52:24-04:00
Cloning into 'j2cl'...
~/src/JetStream/wasm/j2cl-box2d/j2cl ~/src/JetStream/wasm/j2cl-box2d
1c612cb912 Use the original source position of members being replaced in OptimizeAutoValue
error: patch failed: benchmarking/java/com/google/j2cl/benchmarking/benchmarks.bzl:95
error: benchmarking/java/com/google/j2cl/benchmarking/benchmarks.bzl: patch does not apply
error: patch failed: benchmarking/java/com/google/j2cl/benchmarking/templates.bzl:34
error: benchmarking/java/com/google/j2cl/benchmarking/templates.bzl: patch does not apply
error: patch failed: build_defs/internal_do_not_use/j2wasm_application.bzl:50
error: build_defs/internal_do_not_use/j2wasm_application.bzl: patch does not apply

It would be good if the script checked out the revision that was used to build the benchmark instead of whatever is currently on master

@danleh

[kmiller68]

The intention is that one mostly needs the scripts to update the benchmark in the future. You can see the revision used to build the benchmark in the build.log from when it was last built (fbbe1e6db2).