Fix a==b and links, and update backtracking
Fix a==b and links, and update backtracking

rustyhorde/cargo,tshepang/cargo,eminence/cargo,rust-lang/cargo,nipunn1313/cargo,nipunn1313/cargo,tsurai/cargo,vojtechkral/cargo,eminence/cargo,nipunn1313/cargo,vojtechkral/cargo,vojtechkral/cargo,rustyhorde/cargo,eminence/cargo,rust-lang/cargo,rustyhorde/cargo,tsurai/cargo,tshepang/cargo,nipunn1313/cargo,tsurai/cargo,vojtechkral/cargo,tsurai/cargo,tshepang/cargo,tsurai/cargo,rust-lang/cargo,tshepang/cargo,rust-lang/cargo,rustyhorde/cargo,eminence/cargo