Auto merge of #58714 - Centril:rollup, r=Centril

Rollup of 5 pull requests

Successful merges:

 - #58370 (Relax some Hash bounds on HashMap<K, V, S> and HashSet<T, S>)
 - #58421 (Relax some Ord bounds on BinaryHeap<T>)
 - #58686 (replace deprecated rustfmt_skip with rustfmt::skip)
 - #58697 (Use ? in some macros)
 - #58704 (Remove some unnecessary 'extern crate')

Failed merges:

r? @ghost

4 files changed, 0 insertions, 8 deletions

diff --git a/src/bootstrap/bin/main.rs b/src/bootstrap/bin/main.rs
index 8ddce5c247d..0732cb83f39 100644
--- a/src/bootstrap/bin/main.rs
+++ b/src/bootstrap/bin/main.rs
@@ -7,8 +7,6 @@
 
 #![deny(warnings)]
 
-extern crate bootstrap;
-
 use std::env;
 
 use bootstrap::{Config, Build};
diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs
index 7a765973e20..b6afe317a07 100644
--- a/src/bootstrap/bin/rustc.rs
+++ b/src/bootstrap/bin/rustc.rs
@@ -17,8 +17,6 @@
 
 #![deny(warnings)]
 
-extern crate bootstrap;
-
 use std::env;
 use std::ffi::OsString;
 use std::io;
diff --git a/src/bootstrap/bin/rustdoc.rs b/src/bootstrap/bin/rustdoc.rs
index aeb15821b0b..36beec3a944 100644
--- a/src/bootstrap/bin/rustdoc.rs
+++ b/src/bootstrap/bin/rustdoc.rs
@@ -4,8 +4,6 @@
 
 #![deny(warnings)]
 
-extern crate bootstrap;
-
 use std::env;
 use std::process::Command;
 use std::path::PathBuf;
diff --git a/src/bootstrap/bin/sccache-plus-cl.rs b/src/bootstrap/bin/sccache-plus-cl.rs
index f9e14d1ff6d..f40eec83ddf 100644
--- a/src/bootstrap/bin/sccache-plus-cl.rs
+++ b/src/bootstrap/bin/sccache-plus-cl.rs
@@ -1,5 +1,3 @@
-extern crate cc;
-
 use std::env;
 use std::process::{self, Command};