implementing Cargo.lock file when using Rust Core 1.60 with cross-compilation
This might be a silly question, but I've been banging my head against this for hours... I'm working on a Rust project using Rust Core 1.60 and I'm working with issues with the `Cargo.lock` file when attempting to cross-compile for ARM architecture. I have a simple binary crate setup, which works perfectly on my x86_64 machine, but when I try to build for `armv7-unknown-linux-gnueabihf`, I encounter the following behavior: ``` behavior: failed to select a version for the requirement `rand = "^0.8.4"` candidate versions found: 0.8.4, 0.8.3, 0.8.2 required by package `my_project v0.1.0 (/path/to/my_project)` ``` I've already tried running `cargo update` to ensure that my dependencies are up to date, but that doesn't seem to resolve the scenario. I also verified that the `Cargo.toml` file is correctly specifying the `rand` crate as follows: ```toml [dependencies] rand = "^0.8.4" ``` It's worth noting that I initialized the project on my x86_64 machine, and I suspect there might be some discrepancies between the dependencies available for x86_64 and ARM architectures. I tried adding a specific version of the `rand` crate directly in the `Cargo.toml`, but that resulted in similar errors during cross-compilation. Additionally, I've checked the `Cargo.lock` file and noticed that it has entries specific to my x86_64 build, which may not be compatible with ARM. To ensure everything is set up correctly for cross-compilation, I have the following configurations in my `.cargo/config.toml`: ```toml [target.armv7-unknown-linux-gnueabihf] linker = "arm-linux-gnueabihf-gcc" ``` I've also tried cleaning the project using `cargo clean` before the build, but I still run into dependency selection issues. Is there a recommended way to manage dependencies in cross-compilation scenarios to avoid this scenario? Any insights into how I can resolve the version conflict or better configure my environment would be greatly appreciated. What am I doing wrong? My development environment is Ubuntu. How would you solve this?