Auto merge of #4145 - rust-lang:matklad-patch-1, r=alexcrichton
Auto merge of #4145 - rust-lang:matklad-patch-1, r=alexcrichton

Fix flaky test

closes #4144.

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