9 files changed, 99 insertions, 28 deletions
diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index e871b08c5b1..26fef889462 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -133,8 +133,8 @@ target | std | notes
 `armv5te-unknown-linux-musleabi` | ✓ | ARMv5TE Linux with MUSL
 `armv7-linux-androideabi` | ✓ | ARMv7a Android
 `armv7-unknown-linux-gnueabi` | ✓ |ARMv7 Linux (kernel 4.15, glibc 2.27)
-`armv7-unknown-linux-musleabi` | ✓ |ARMv7 Linux, MUSL
-`armv7-unknown-linux-musleabihf` | ✓ | ARMv7 Linux with MUSL
+`armv7-unknown-linux-musleabi` | ✓ |ARMv7 Linux with MUSL
+`armv7-unknown-linux-musleabihf` | ✓ | ARMv7 Linux with MUSL, hardfloat
 `armv7a-none-eabi` | * | Bare ARMv7-A
 `armv7r-none-eabi` | * | Bare ARMv7-R
 `armv7r-none-eabihf` | * | Bare ARMv7-R, hardfloat
diff --git a/src/doc/rustdoc/src/lints.md b/src/doc/rustdoc/src/lints.md
index 16b091eb255..d5981dd83de 100644
--- a/src/doc/rustdoc/src/lints.md
+++ b/src/doc/rustdoc/src/lints.md
@@ -70,6 +70,8 @@ This lint **warns by default**. This lint detects when [intra-doc links] from pu
 For example:
 
 ```rust
+#![warn(rustdoc::private_intra_doc_links)] // note: unecessary - warns by default.
+
 /// [private]
 pub fn public() {}
 fn private() {}
@@ -227,6 +229,8 @@ This lint **warns by default**. It detects code block attributes in
 documentation examples that have potentially mis-typed values. For example:
 
 ```rust
+#![warn(rustdoc::invalid_codeblock_attributes)]  // note: unecessary - warns by default.
+
 /// Example.
 ///
 /// ```should-panic
@@ -344,6 +348,8 @@ This lint is **warn-by-default**. It detects URLs which are not links.
 For example:
 
 ```rust
+#![warn(rustdoc::bare_urls)] // note: unecessary - warns by default.
+
 /// http://example.org
 /// [http://example.net]
 pub fn foo() {}
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 49fc93f3fea..a55d85f5841 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -11,7 +11,7 @@ crate mod utils;
 
 use rustc_ast as ast;
 use rustc_attr as attr;
-use rustc_const_eval::const_eval::{is_const_fn, is_unstable_const_fn};
+use rustc_const_eval::const_eval::is_unstable_const_fn;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_hir as hir;
 use rustc_hir::def::{CtorKind, DefKind, Res};
@@ -787,7 +787,7 @@ fn clean_fn_or_proc_macro(
             let mut func = (sig, generics, body_id).clean(cx);
             let def_id = item.def_id.to_def_id();
             func.header.constness =
-                if is_const_fn(cx.tcx, def_id) && is_unstable_const_fn(cx.tcx, def_id).is_none() {
+                if cx.tcx.is_const_fn(def_id) && is_unstable_const_fn(cx.tcx, def_id).is_none() {
                     hir::Constness::Const
                 } else {
                     hir::Constness::NotConst
diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs
index ac760fad103..43abcf095d8 100644
--- a/src/librustdoc/doctest.rs
+++ b/src/librustdoc/doctest.rs
@@ -853,6 +853,7 @@ impl Collector {
 
     fn generate_name(&self, line: usize, filename: &FileName) -> String {
         let mut item_path = self.names.join("::");
+        item_path.retain(|c| c != ' ');
         if !item_path.is_empty() {
             item_path.push(' ');
         }
diff --git a/src/test/ui/pattern/usefulness/issue-72476-and-89393-associated-type.rs b/src/test/ui/pattern/usefulness/issue-72476-and-89393-associated-type.rs
new file mode 100644
index 00000000000..058f4196798
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/issue-72476-and-89393-associated-type.rs
@@ -0,0 +1,56 @@
+// check-pass
+
+// From https://github.com/rust-lang/rust/issues/72476
+// and https://github.com/rust-lang/rust/issues/89393
+
+trait Trait {
+    type Projection;
+}
+
+struct A;
+impl Trait for A {
+    type Projection = bool;
+}
+
+struct B;
+impl Trait for B {
+    type Projection = (u32, u32);
+}
+
+struct Next<T: Trait>(T::Projection);
+
+fn foo1(item: Next<A>) {
+    match item {
+        Next(true) => {}
+        Next(false) => {}
+    }
+}
+
+fn foo2(x: <A as Trait>::Projection) {
+    match x {
+        true => {}
+        false => {}
+    }
+}
+
+fn foo3(x: Next<B>) {
+    let Next((_, _)) = x;
+    match x {
+        Next((_, _)) => {}
+    }
+}
+
+fn foo4(x: <B as Trait>::Projection) {
+    let (_, _) = x;
+    match x {
+        (_, _) => {}
+    }
+}
+
+fn foo5<T: Trait>(x: <T as Trait>::Projection) {
+    match x {
+        _ => {}
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/pattern/usefulness/issue-72476-associated-type.rs b/src/test/ui/pattern/usefulness/issue-72476-associated-type.rs
deleted file mode 100644
index 1e1d21433b7..00000000000
--- a/src/test/ui/pattern/usefulness/issue-72476-associated-type.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-// check-pass
-
-// From https://github.com/rust-lang/rust/issues/72476
-
-trait A {
-    type Projection;
-}
-
-impl A for () {
-    type Projection = bool;
-}
-
-struct Next<T: A>(T::Projection);
-
-fn f(item: Next<()>) {
-    match item {
-        Next(true) => {}
-        Next(false) => {}
-    }
-}
-
-fn main() {}
diff --git a/src/test/ui/rfc-2632-const-trait-impl/const-closures.rs b/src/test/ui/rfc-2632-const-trait-impl/const-closures.rs
new file mode 100644
index 00000000000..99e608797ff
--- /dev/null
+++ b/src/test/ui/rfc-2632-const-trait-impl/const-closures.rs
@@ -0,0 +1,31 @@
+// run-pass
+
+#![feature(const_trait_impl)]
+#![feature(const_fn_trait_bound)]
+
+const fn answer_p1<F>(f: &F) -> u8
+    where
+        F: ~const FnOnce() -> u8,
+        F: ~const FnMut() -> u8,
+        F: ~const Fn() -> u8,
+{
+    f() * 7
+}
+
+const fn three() -> u8 {
+    3
+}
+
+const fn answer_p2() -> u8 {
+    answer_p1(&three)
+}
+
+const fn answer<F: ~const Fn() -> u8>(f: &F) -> u8 {
+    f() + f()
+}
+
+const ANSWER: u8 = answer(&answer_p2);
+
+fn main() {
+    assert_eq!(ANSWER, 42)
+}
diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs
index 7f5a1bf9c07..03f77f36b46 100644
--- a/src/tools/clippy/clippy_utils/src/lib.rs
+++ b/src/tools/clippy/clippy_utils/src/lib.rs
@@ -18,7 +18,6 @@
 extern crate rustc_ast;
 extern crate rustc_ast_pretty;
 extern crate rustc_attr;
-extern crate rustc_const_eval;
 extern crate rustc_data_structures;
 extern crate rustc_errors;
 extern crate rustc_hir;
diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
index 238728f090f..e6d8ba3f02e 100644
--- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
+++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs
@@ -364,7 +364,7 @@ fn check_terminator(
 }
 
 fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: Option<&RustcVersion>) -> bool {
-    rustc_const_eval::const_eval::is_const_fn(tcx, def_id)
+    tcx.is_const_fn(def_id)
         && tcx.lookup_const_stability(def_id).map_or(true, |const_stab| {
             if let rustc_attr::StabilityLevel::Stable { since } = const_stab.level {
                 // Checking MSRV is manually necessary because `rustc` has no such concept. This entire