add a test for cargo/issues/4347
add a test for cargo/issues/4347

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