diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
index 99ce13a6ed59c..3595e37cf9625 100644
--- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
@@ -793,16 +793,23 @@ LLVMRustOptimizeWithNewPassManager(
     PGOOpt = PGOOptions(PGOUsePath, "", "", PGOOptions::IRUse);
   }
 
-#if LLVM_VERSION_GE(12, 0)
+#if LLVM_VERSION_GE(12, 0) && !LLVM_VERSION_GE(13,0)
   PassBuilder PB(DebugPassManager, TM, PTO, PGOOpt, &PIC);
 #else
   PassBuilder PB(TM, PTO, PGOOpt, &PIC);
 #endif
 
+#if LLVM_VERSION_GE(13, 0)
+  LoopAnalysisManager LAM;
+  FunctionAnalysisManager FAM;
+  CGSCCAnalysisManager CGAM;
+  ModuleAnalysisManager MAM;
+#else
   LoopAnalysisManager LAM(DebugPassManager);
   FunctionAnalysisManager FAM(DebugPassManager);
   CGSCCAnalysisManager CGAM(DebugPassManager);
   ModuleAnalysisManager MAM(DebugPassManager);
+#endif
 
   FAM.registerPass([&] { return PB.buildDefaultAAPipeline(); });
 
@@ -956,7 +963,11 @@ LLVMRustOptimizeWithNewPassManager(
     }
   }
 
+#if LLVM_VERSION_GE(13, 0)
+  ModulePassManager MPM;
+#else
   ModulePassManager MPM(DebugPassManager);
+#endif
   bool NeedThinLTOBufferPasses = UseThinLTOBuffers;
   if (!NoPrepopulatePasses) {
     if (OptLevel == PassBuilder::OptimizationLevel::O0) {
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 14ee083eceebe..46ef308cbf27c 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -132,6 +132,7 @@ symbols! {
         Borrow,
         Break,
         C,
+        CStr,
         CString,
         Center,
         Clone,
diff --git a/library/std/src/ffi/c_str.rs b/library/std/src/ffi/c_str.rs
index 2f9845d7536cd..2a4ef553be399 100644
--- a/library/std/src/ffi/c_str.rs
+++ b/library/std/src/ffi/c_str.rs
@@ -10,7 +10,6 @@ use crate::error::Error;
 use crate::fmt::{self, Write};
 use crate::io;
 use crate::mem;
-use crate::memchr;
 use crate::num::NonZeroU8;
 use crate::ops;
 use crate::os::raw::c_char;
@@ -20,6 +19,7 @@ use crate::slice;
 use crate::str::{self, Utf8Error};
 use crate::sync::Arc;
 use crate::sys;
+use crate::sys_common::memchr;
 
 /// A type representing an owned, C-compatible, nul-terminated string with no nul bytes in the
 /// middle.
@@ -185,6 +185,7 @@ pub struct CString {
 ///
 /// [`&str`]: prim@str
 #[derive(Hash)]
+#[cfg_attr(not(test), rustc_diagnostic_item = "CStr")]
 #[stable(feature = "rust1", since = "1.0.0")]
 // FIXME:
 // `fn from` in `impl From<&CStr> for Box<CStr>` current implementation relies
diff --git a/library/std/src/io/buffered/linewritershim.rs b/library/std/src/io/buffered/linewritershim.rs
index d0c859d2e0c87..0175d2693e894 100644
--- a/library/std/src/io/buffered/linewritershim.rs
+++ b/library/std/src/io/buffered/linewritershim.rs
@@ -1,5 +1,5 @@
 use crate::io::{self, BufWriter, IoSlice, Write};
-use crate::memchr;
+use crate::sys_common::memchr;
 
 /// Private helper struct for implementing the line-buffered writing logic.
 /// This shim temporarily wraps a BufWriter, and uses its internals to
diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs
index e18402f8dec1c..a8f3412c61116 100644
--- a/library/std/src/io/mod.rs
+++ b/library/std/src/io/mod.rs
@@ -253,12 +253,12 @@ mod tests;
 
 use crate::cmp;
 use crate::fmt;
-use crate::memchr;
 use crate::ops::{Deref, DerefMut};
 use crate::ptr;
 use crate::slice;
 use crate::str;
 use crate::sys;
+use crate::sys_common::memchr;
 
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use self::buffered::IntoInnerError;
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 6d11698d26822..442b5628d1dc0 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -530,7 +530,6 @@ mod sys;
 pub mod alloc;
 
 // Private support modules
-mod memchr;
 mod panicking;
 
 // The runtime entry point and a few unstable public functions used by the
diff --git a/library/std/src/sys/hermit/os.rs b/library/std/src/sys/hermit/os.rs
index 81cd68a74e665..40bd393098f57 100644
--- a/library/std/src/sys/hermit/os.rs
+++ b/library/std/src/sys/hermit/os.rs
@@ -4,11 +4,11 @@ use crate::ffi::{CStr, OsStr, OsString};
 use crate::fmt;
 use crate::io;
 use crate::marker::PhantomData;
-use crate::memchr;
 use crate::path::{self, PathBuf};
 use crate::str;
 use crate::sync::Mutex;
 use crate::sys::hermit::abi;
+use crate::sys::memchr;
 use crate::sys::unsupported;
 use crate::sys_common::os_str_bytes::*;
 use crate::vec;
diff --git a/library/std/src/sys/unix/os.rs b/library/std/src/sys/unix/os.rs
index 51c3e5d175cca..bbc4691d963c6 100644
--- a/library/std/src/sys/unix/os.rs
+++ b/library/std/src/sys/unix/os.rs
@@ -13,13 +13,13 @@ use crate::fmt;
 use crate::io;
 use crate::iter;
 use crate::mem;
-use crate::memchr;
 use crate::path::{self, PathBuf};
 use crate::ptr;
 use crate::slice;
 use crate::str;
 use crate::sys::cvt;
 use crate::sys::fd;
+use crate::sys::memchr;
 use crate::sys::rwlock::{RWLockReadGuard, StaticRWLock};
 use crate::sys_common::mutex::{StaticMutex, StaticMutexGuard};
 use crate::vec;
diff --git a/library/std/src/memchr.rs b/library/std/src/sys_common/memchr.rs
similarity index 92%
rename from library/std/src/memchr.rs
rename to library/std/src/sys_common/memchr.rs
index 86a08f75a8d48..b219e87891264 100644
--- a/library/std/src/memchr.rs
+++ b/library/std/src/sys_common/memchr.rs
@@ -1,6 +1,8 @@
 // Original implementation taken from rust-memchr.
 // Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
 
+use crate::sys::memchr as sys;
+
 #[cfg(test)]
 mod tests;
 
@@ -25,7 +27,7 @@ mod tests;
 /// ```
 #[inline]
 pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
-    crate::sys::memchr::memchr(needle, haystack)
+    sys::memchr(needle, haystack)
 }
 
 /// A safe interface to `memrchr`.
@@ -45,5 +47,5 @@ pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
 /// ```
 #[inline]
 pub fn memrchr(needle: u8, haystack: &[u8]) -> Option<usize> {
-    crate::sys::memchr::memrchr(needle, haystack)
+    sys::memrchr(needle, haystack)
 }
diff --git a/library/std/src/memchr/tests.rs b/library/std/src/sys_common/memchr/tests.rs
similarity index 100%
rename from library/std/src/memchr/tests.rs
rename to library/std/src/sys_common/memchr/tests.rs
diff --git a/library/std/src/sys_common/mod.rs b/library/std/src/sys_common/mod.rs
index 7fa6977f2af26..5d2136ae74488 100644
--- a/library/std/src/sys_common/mod.rs
+++ b/library/std/src/sys_common/mod.rs
@@ -25,6 +25,7 @@ pub mod bytestring;
 pub mod condvar;
 pub mod fs;
 pub mod io;
+pub mod memchr;
 pub mod mutex;
 // `doc` is required because `sys/mod.rs` imports `unix/ext/mod.rs` on Windows
 // when generating documentation.
diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs
index 9adc099aaa566..bda5ed888d7e1 100644
--- a/library/test/src/lib.rs
+++ b/library/test/src/lib.rs
@@ -49,7 +49,7 @@ pub mod test {
         cli::{parse_opts, TestOpts},
         filter_tests,
         helpers::metrics::{Metric, MetricMap},
-        options::{Options, RunIgnored, RunStrategy, ShouldPanic},
+        options::{Concurrent, Options, RunIgnored, RunStrategy, ShouldPanic},
         run_test, test_main, test_main_static,
         test_result::{TestResult, TrFailed, TrFailedMsg, TrIgnored, TrOk},
         time::{TestExecTime, TestTimeOptions},
diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index a288b43722ad4..318e1b44f8683 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -1352,8 +1352,11 @@ fn render_impl(
         }
         let w = if short_documented && trait_.is_some() { interesting } else { boring };
 
-        if !doc_buffer.is_empty() {
-            w.write_str("<details class=\"rustdoc-toggle\" open><summary>");
+        let toggled = !doc_buffer.is_empty();
+        if toggled {
+            let method_toggle_class =
+                if item_type == ItemType::Method { " method-toggle" } else { "" };
+            write!(w, "<details class=\"rustdoc-toggle{}\" open><summary>", method_toggle_class);
         }
         match *item.kind {
             clean::MethodItem(..) | clean::TyMethodItem(_) => {
@@ -1453,7 +1456,7 @@ fn render_impl(
         }
 
         w.push_buffer(info_buffer);
-        if !doc_buffer.is_empty() {
+        if toggled {
             w.write_str("</summary>");
             w.push_buffer(doc_buffer);
             w.push_str("</details>");
diff --git a/src/librustdoc/html/static/main.js b/src/librustdoc/html/static/main.js
index 7c00cf940c773..8204949267250 100644
--- a/src/librustdoc/html/static/main.js
+++ b/src/librustdoc/html/static/main.js
@@ -924,24 +924,16 @@ function hideThemeButtonState() {
             });
         }
 
-        if (hideMethodDocs) {
-            onEachLazy(document.getElementsByClassName("method"), function(e) {
-                var toggle = e.parentNode;
-                if (toggle) {
-                    toggle = toggle.parentNode;
-                }
-                if (toggle && toggle.tagName === "DETAILS") {
-                    toggle.open = false;
-                }
-            });
-        }
-
         onEachLazy(document.getElementsByTagName("details"), function (e) {
             var showLargeItem = !hideLargeItemContents && hasClass(e, "type-contents-toggle");
             var showImplementor = !hideImplementors && hasClass(e, "implementors-toggle");
             if (showLargeItem || showImplementor) {
                 e.open = true;
             }
+            if (hideMethodDocs && hasClass(e, "method-toggle")) {
+                e.open = false;
+            }
+
         });
 
         var currentType = document.getElementsByClassName("type-decl")[0];
diff --git a/src/librustdoc/html/static/themes/ayu.css b/src/librustdoc/html/static/themes/ayu.css
index 989ea7140c587..e59909ffdf05e 100644
--- a/src/librustdoc/html/static/themes/ayu.css
+++ b/src/librustdoc/html/static/themes/ayu.css
@@ -151,17 +151,14 @@ pre, .rustdoc.source .example-wrap {
 	color: #c5c5c5;
 }
 
-.content a:hover {
+.search-results a:hover {
 	background-color: #777;
 }
 
-.content a:focus {
+.search-results a:focus {
 	color: #000 !important;
 	background-color: #c6afb3;
 }
-.content a:focus {
-	color: #000 !important;
-}
 .search-results a {
 	color: #0096cf;
 }
diff --git a/src/librustdoc/html/static/themes/dark.css b/src/librustdoc/html/static/themes/dark.css
index e6bd16ddd11b8..a2bcb43f44e6f 100644
--- a/src/librustdoc/html/static/themes/dark.css
+++ b/src/librustdoc/html/static/themes/dark.css
@@ -109,11 +109,11 @@ pre, .rustdoc.source .example-wrap {
 	color: #ddd;
 }
 
-.content a:hover {
+.search-results a:hover {
 	background-color: #777;
 }
 
-.content a:focus {
+.search-results a:focus {
 	color: #eee !important;
 	background-color: #616161;
 }
diff --git a/src/librustdoc/html/static/themes/light.css b/src/librustdoc/html/static/themes/light.css
index 5481b348aa26f..2ad3551d900ea 100644
--- a/src/librustdoc/html/static/themes/light.css
+++ b/src/librustdoc/html/static/themes/light.css
@@ -109,11 +109,11 @@ pre, .rustdoc.source .example-wrap {
 	color: #4E4C4C;
 }
 
-.content a:hover {
+.search-results a:hover {
 	background-color: #ddd;
 }
 
-.content a:focus {
+.search-results a:focus {
 	color: #000 !important;
 	background-color: #ccc;
 }
diff --git a/src/tools/rust-analyzer b/src/tools/rust-analyzer
index fd109fb587904..b82458818d44d 160000
--- a/src/tools/rust-analyzer
+++ b/src/tools/rust-analyzer
@@ -1 +1 @@
-Subproject commit fd109fb587904cfecc1149e068814bfd38feb83c
+Subproject commit b82458818d44dfe5b4b5db38d8113e3f3194506e