8 files changed, 101 insertions, 13 deletions
diff --git a/src/ci/run.sh b/src/ci/run.sh
index f05bb81d4a1..b6430027750 100755
--- a/src/ci/run.sh
+++ b/src/ci/run.sh
@@ -45,14 +45,6 @@ fi
 ci_dir=`cd $(dirname $0) && pwd`
 source "$ci_dir/shared.sh"
 
-if command -v python > /dev/null; then
-    PYTHON="python"
-elif command -v python3 > /dev/null; then
-    PYTHON="python3"
-else
-    PYTHON="python2"
-fi
-
 if ! isCI || isCiBranch auto || isCiBranch beta || isCiBranch try || isCiBranch try-perf; then
     RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set build.print-step-timings --enable-verbose-tests"
     RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set build.metrics"
@@ -201,7 +193,7 @@ if [ "$RUN_CHECK_WITH_PARALLEL_QUERIES" != "" ]; then
     mv metrics.json build
   fi
 
-  CARGO_INCREMENTAL=0 $PYTHON ../x.py check
+  CARGO_INCREMENTAL=0 ../x check
 fi
 
 sccache --show-stats || true
diff --git a/src/librustdoc/html/static/css/themes/ayu.css b/src/librustdoc/html/static/css/themes/ayu.css
index 36f1f955f5f..7d7bdfb92ce 100644
--- a/src/librustdoc/html/static/css/themes/ayu.css
+++ b/src/librustdoc/html/static/css/themes/ayu.css
@@ -183,11 +183,7 @@ individually rather than as a group) */
 /* FIXME: these rules should be at the bottom of the file but currently must be
 above the `@media (max-width: 700px)` rules due to a bug in the css checker */
 /* see https://github.com/rust-lang/rust/pull/71237#issuecomment-618170143 */
-pre.rust .lifetime {}
-pre.rust .kw {}
 #search-tabs > button:hover, #search-tabs > button.selected {}
-pre.rust .self, pre.rust .bool-val, pre.rust .prelude-val, pre.rust .attribute {}
-pre.rust .kw-2, pre.rust .prelude-ty {}
 
 #settings-menu > a img {
 	filter: invert(100);
diff --git a/src/test/ui/lint/unused_braces_macro.rs b/src/test/ui/lint/unused_braces_macro.rs
new file mode 100644
index 00000000000..bfee95378bf
--- /dev/null
+++ b/src/test/ui/lint/unused_braces_macro.rs
@@ -0,0 +1,6 @@
+// build-pass
+pub fn foo<const BAR: bool> () {}
+
+fn main() {
+    foo::<{cfg!(feature = "foo")}>();
+}
diff --git a/src/test/ui/suggestions/shadowed-lplace-method-2.rs b/src/test/ui/suggestions/shadowed-lplace-method-2.rs
new file mode 100644
index 00000000000..dab99fbacd9
--- /dev/null
+++ b/src/test/ui/suggestions/shadowed-lplace-method-2.rs
@@ -0,0 +1,23 @@
+#![allow(unused)]
+
+struct X {
+    x: (),
+}
+pub trait A {
+    fn foo(&mut self, _: usize) -> &mut ();
+}
+impl A for X {
+    fn foo(&mut self, _: usize) -> &mut () {
+        &mut self.x
+    }
+}
+impl X {
+    fn foo(&mut self, _: usize) -> &mut Self {
+        self
+    }
+}
+
+fn main() {
+    let mut x = X { x: () };
+    *x.foo(0) = (); //~ ERROR E0308
+}
diff --git a/src/test/ui/suggestions/shadowed-lplace-method-2.stderr b/src/test/ui/suggestions/shadowed-lplace-method-2.stderr
new file mode 100644
index 00000000000..94eef15f330
--- /dev/null
+++ b/src/test/ui/suggestions/shadowed-lplace-method-2.stderr
@@ -0,0 +1,25 @@
+error[E0308]: mismatched types
+  --> $DIR/shadowed-lplace-method-2.rs:22:17
+   |
+LL |     *x.foo(0) = ();
+   |     ---------   ^^ expected struct `X`, found `()`
+   |     |
+   |     expected due to the type of this binding
+   |
+note: the `foo` call is resolved to the method in `X`, shadowing the method of the same name on trait `A`
+  --> $DIR/shadowed-lplace-method-2.rs:22:8
+   |
+LL |     *x.foo(0) = ();
+   |        ^^^ refers to `X::foo`
+help: you might have meant to call the other method; you can use the fully-qualified path to call it explicitly
+   |
+LL |     *<_ as A>::foo(&mut x, 0) = ();
+   |      ++++++++++++++++++  ~
+help: try wrapping the expression in `X`
+   |
+LL |     *x.foo(0) = X { x: () };
+   |                 ++++++    +
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/suggestions/shadowed-lplace-method.fixed b/src/test/ui/suggestions/shadowed-lplace-method.fixed
new file mode 100644
index 00000000000..740ac77ee0c
--- /dev/null
+++ b/src/test/ui/suggestions/shadowed-lplace-method.fixed
@@ -0,0 +1,10 @@
+// run-rustfix
+#![allow(unused_imports)]
+use std::borrow::BorrowMut;
+use std::cell::RefCell;
+use std::rc::Rc;
+
+fn main() {
+    let rc = Rc::new(RefCell::new(true));
+    *std::cell::RefCell::<_>::borrow_mut(&rc) = false; //~ ERROR E0308
+}
diff --git a/src/test/ui/suggestions/shadowed-lplace-method.rs b/src/test/ui/suggestions/shadowed-lplace-method.rs
new file mode 100644
index 00000000000..6bf12879e6f
--- /dev/null
+++ b/src/test/ui/suggestions/shadowed-lplace-method.rs
@@ -0,0 +1,10 @@
+// run-rustfix
+#![allow(unused_imports)]
+use std::borrow::BorrowMut;
+use std::cell::RefCell;
+use std::rc::Rc;
+
+fn main() {
+    let rc = Rc::new(RefCell::new(true));
+    *rc.borrow_mut() = false; //~ ERROR E0308
+}
diff --git a/src/test/ui/suggestions/shadowed-lplace-method.stderr b/src/test/ui/suggestions/shadowed-lplace-method.stderr
new file mode 100644
index 00000000000..91d0d1200d4
--- /dev/null
+++ b/src/test/ui/suggestions/shadowed-lplace-method.stderr
@@ -0,0 +1,26 @@
+error[E0308]: mismatched types
+  --> $DIR/shadowed-lplace-method.rs:9:24
+   |
+LL |     *rc.borrow_mut() = false;
+   |     ----------------   ^^^^^ expected struct `Rc`, found `bool`
+   |     |
+   |     expected due to the type of this binding
+   |
+   = note: expected struct `Rc<RefCell<bool>>`
+                found type `bool`
+note: the `borrow_mut` call is resolved to the method in `std::borrow::BorrowMut`, shadowing the method of the same name on the inherent impl for `std::cell::RefCell<T>`
+  --> $DIR/shadowed-lplace-method.rs:9:9
+   |
+LL | use std::borrow::BorrowMut;
+   |     ---------------------- `std::borrow::BorrowMut` imported here
+...
+LL |     *rc.borrow_mut() = false;
+   |         ^^^^^^^^^^ refers to `std::borrow::BorrowMut::borrow_mut`
+help: you might have meant to call the other method; you can use the fully-qualified path to call it explicitly
+   |
+LL |     *std::cell::RefCell::<_>::borrow_mut(&rc) = false;
+   |      +++++++++++++++++++++++++++++++++++++  ~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.