Rollup merge of rust-lang#59997 - ehuss:update-cargo, r=alexcrichton

Centril · web-flow · commit ec330807bedc · 2019-04-16T00:17:42.000+02:00
Update cargo 12 commits in 6f3e9c367abb497c64f360c3839dab5e74928d5c..ef0223f12597b5e0d9d2feed1b92c41306b1fc05 2019-04-04 14:11:33 +0000 to 2019-04-15 14:36:55 +0000 - Fix test include_overrides_gitignore. (rust-lang/cargo#6850) - Clarify optional registry key behaviour (rust-lang/cargo#6851) - Ensure Summary::checksum works for registry crates (rust-lang/cargo#6842) - Better error if PathSource::walk can't access something. (rust-lang/cargo#6841) - Improve warning in `cargo new` with parse error. (rust-lang/cargo#6839) - Improve error message for `publish` key restriction. (rust-lang/cargo#6838) - Remove `Freshness` from `DependencyQueue` (rust-lang/cargo#6832) - testsuite: cleanup for `alternative-registries` (rust-lang/cargo#6837) - Improve error message to rerun a test in a workspace. (rust-lang/cargo#6824) - Fix mutable_borrow_reservation_conflict warning. (rust-lang/cargo#6829) - Add install-upgrade. (rust-lang/cargo#6798) - Clarify docs of install without &lt;crate&gt; (rust-lang/cargo#6823)
diff --git a/src/tools/cargo b/src/tools/cargo
@@ -1 +1 @@
-Subproject commit 6f3e9c367abb497c64f360c3839dab5e74928d5c
+Subproject commit ef0223f12597b5e0d9d2feed1b92c41306b1fc05
