fn run_build(
project: &ProjectRoot,
toolchain: &ToolchainSelection,
mode: BuildMode,
compiler: &dyn CompilerBackend,
) -> Result<PathBuf, DealerError>fn run_build(
project: &ProjectRoot,
toolchain: &ToolchainSelection,
mode: BuildMode,
compiler: &dyn CompilerBackend,
) -> Result<PathBuf, DealerError>