Fix raw pointer ref, done by Cursor

[edwardalee]

This PR provides a potential fix to a compile error that started spontaneously appearing on June 8, 2025, which had the following form:

lfc: error: implicit autoref creates a reference to the dereference of a raw pointer [big.rs:149:36]
...
lfc: error: implicit autoref creates a reference to the dereference of a raw pointer [banking.rs:157:36]

The fix is provided by Cursor.

Unfortunately, this does not fix the problem.
So this PR disables the Rust benchmark tests altogether.

[oowekyala]

Can you point me to a place where the compile error is visible? And also what is cursor?

There is no raw pointer here so if cursor is some kind of linter it is wrong. The dereference is calling this implementation which is completely safe, so adding unsafe blocks is not needed here...

[edwardalee]

You can find the error here:

https://github.com/lf-lang/lingua-franca/actions/runs/15530831589/job/43719285633?pr=2515

and in every other PR to lingua-franca that has run tests in the last couple of days.
Cursor is an AI-enabled IDE based on VS Code.

[oowekyala]

lf-lang/reactor-rs#53 would fix the issue. But we need to bump the reactor runtime version in lf-lang/lingua-franca I suspect.

To avoid future issues like this we shouldn't just download the latest nightly rust in CI. We should run with a set version. Edit: this is the place:

benchmarks-lingua-franca/.github/workflows/benchmark-tests.yml

Line 72 in 76fb807

toolchain: nightly

[edwardalee]

This is fixed instead in lf-lang/reactor-rs#53