Change searching for a workspace root from find_map() to explicit loop
Change searching for a workspace root from find_map() to explicit loop

rustyhorde/cargo,rust-lang/cargo,rustyhorde/cargo,nipunn1313/cargo,rust-lang/cargo,nipunn1313/cargo,rustyhorde/cargo,nipunn1313/cargo,eminence/cargo,nipunn1313/cargo,eminence/cargo,eminence/cargo,rust-lang/cargo,rustyhorde/cargo,rust-lang/cargo,eminence/cargo