Rollup merge of #50344 - SimonSapin:cargo, r=alexcrichton

Update Cargo to 2018-04-28 122fd5be5201913d42e219e132d6569493583bca
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kennytm 2018-05-01 01:18:43 +08:00 committed by GitHub
commit 6166f20571
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@ -1 +1 @@
Subproject commit 0a1add2d8689ad12a86f6c32d0a5cd0393dc5d80
Subproject commit 122fd5be5201913d42e219e132d6569493583bca