Auto merge of #49590 - alexcrichton:update-deps, r=Mark-Simulacrum

Bump to 1.27.0

Also update some `Cargo.lock` dependencies, finishing up some final steps of our
[release process]!

This doesn't update the bootstrap compiler just yet but that will come in a
follow-up PR.

[release process]: https://forge.rust-lang.org/release-process.html

Author: bors

src/Cargo.lock

@@ -24,7 +24,7 @@ use Build;
 use config::Config;
 
 // The version number
-pub const CFG_RELEASE_NUM: &str = "1.26.0";
+pub const CFG_RELEASE_NUM: &str = "1.27.0";
 
 pub struct GitInfo {
     inner: Option<Info>,

src/bootstrap/channel.rs

@@ -257,6 +257,11 @@ fn check(cache: &mut Cache,
                     return;
                 }
 
+                // These appear to be broken in mdbook right now?
+                if fragment.starts_with("-") {
+                    return;
+                }
+
                 let entry = &mut cache.get_mut(&pretty_path).unwrap();
                 entry.parse_ids(&pretty_path, &contents, errors);