cross build --target-dir=<path> ... doesn't work

[vadimcn]

I'm calling cross from cmake to build a Rust component, and I wanted to relocate the target directory under cmake's build root. Unfortunately, this does not work, because cross seems to assume that target must always be located next to Cargo.toml.

Relocating target via .cargo/config containing target-dir = "build/target" doesn't work either.

[Alexhuszagh]

This should have been patched as of #713, to ensure --target-dir works if passed into the container, or use the initial arguments if we fallback to the host. Let me know if the issue still remains.