Update Cargo submodule

Also update Cargo's dependencies while we're at it

Author: alexcrichton

src/Cargo.lock

@@ -8,11 +8,11 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// aux-build:png.rs
+// aux-build:png2.rs
 // edition:2018
 
 mod png {
-    use png as png_ext;
+    use png2 as png_ext;
 
     fn foo() -> png_ext::DecodingError { unimplemented!() }
 }

src/test/run-pass/issue-52705/auxiliary/png.rs renamed to src/test/run-pass/issue-52705/auxiliary/png2.rs

@@ -22,23 +22,25 @@ syn = { version = "0.14", features = ['extra-traits'] }
 [target.'cfg(windows)'.dependencies.winapi]
 version = "0.3"
 features = [
-  "profileapi",
+  "basetsd",
+  "jobapi",
+  "jobapi2",
+  "lmcons",
   "memoryapi",
   "minschannel",
-  "securitybaseapi",
-  "jobapi2",
-  "schannel",
-  "sysinfoapi",
-  "jobapi",
-  "synchapi",
-  "wincrypt",
-  "winbase",
   "minwinbase",
   "ntsecapi",
-  "basetsd",
   "ntstatus",
+  "profileapi",
   "psapi",
+  "schannel",
+  "securitybaseapi",
+  "shellapi",
+  "synchapi",
+  "sysinfoapi",
   "timezoneapi",
-  "lmcons",
+  "userenv",
+  "winbase",
   "wincon",
+  "wincrypt",
 ]

src/test/run-pass/issue-52705/main.rs

@@ -50,6 +50,7 @@ static EXCEPTIONS: &'static [&'static str] = &[
     "colored",            // MPL-2.0, rustfmt
     "ordslice",           // Apache-2.0, rls
     "cloudabi",           // BSD-2-Clause, (rls -> crossbeam-channel 0.2 -> rand 0.5)
+    "ryu",                // Apache-2.0, rls/cargo/... (b/c of serde)
 ];
 
 /// Which crates to check against the whitelist?
@@ -68,9 +69,10 @@ static WHITELIST: &'static [Crate] = &[
     Crate("bitflags"),
     Crate("byteorder"),
     Crate("cc"),
+    Crate("cfg-if"),
     Crate("chalk-engine"),
     Crate("chalk-macros"),
-    Crate("cfg-if"),
+    Crate("cloudabi"),
     Crate("cmake"),
     Crate("crossbeam-deque"),
     Crate("crossbeam-epoch"),
@@ -103,6 +105,7 @@ static WHITELIST: &'static [Crate] = &[
     Crate("pkg-config"),
     Crate("quick-error"),
     Crate("rand"),
+    Crate("rand_core"),
     Crate("redox_syscall"),
     Crate("redox_termios"),
     Crate("regex"),
@@ -125,6 +128,7 @@ static WHITELIST: &'static [Crate] = &[
     Crate("unicode-width"),
     Crate("unreachable"),
     Crate("utf8-ranges"),
+    Crate("version_check"),
     Crate("void"),
     Crate("winapi"),
     Crate("winapi-build"),