binary2strings reads utf8 and wide strings (we don't expect or require the latter for Rust strings extraction).
In rust-hello64.exe
we see

Which parsed as wide string starting at offset 0x1400BD04F, b2s sees as:

We then filter out the wide string and end up with args
in the final Rust strings output.
Bumping the min_string length to 6 also mitigates this, but we could then miss shorter strings.