Rollup of 3 pull requests

src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile

@@ -72,7 +72,7 @@ ENV PATH="/node-v14.4.0-linux-x64/bin:${PATH}"
 # https://github.com/puppeteer/puppeteer/issues/375
 #
 # We also specify the version in case we need to update it to go around cache limitations.
-RUN npm install -g browser-ui-test@0.8.0 --unsafe-perm=true
+RUN npm install -g browser-ui-test@0.8.1 --unsafe-perm=true
 
 ENV RUST_CONFIGURE_ARGS \
   --build=x86_64-unknown-linux-gnu \

src/librustdoc/clean/inline.rs

@@ -327,7 +327,7 @@ fn merge_attrs(
 /// Inline an `impl`, inherent or of a trait. The `did` must be for an `impl`.
 crate fn build_impl(
     cx: &mut DocContext<'_>,
-    parent_module: impl Into<Option<DefId>>,
+    parent_module: Option<DefId>,
     did: DefId,
     attrs: Option<Attrs<'_>>,
     ret: &mut Vec<clean::Item>,
@@ -478,7 +478,7 @@ crate fn build_impl(
         record_extern_trait(cx, did);
     }
 
-    let (merged_attrs, cfg) = merge_attrs(cx, parent_module.into(), load_attrs(cx, did), attrs);
+    let (merged_attrs, cfg) = merge_attrs(cx, parent_module, load_attrs(cx, did), attrs);
     trace!("merged_attrs={:?}", merged_attrs);
 
     trace!(

src/test/ui/methods/issues/issue-84495.rs

@@ -0,0 +1,4 @@
+fn main() {
+    let x: i32 = 1;
+    println!("{:?}", x.count()); //~ ERROR is not an iterator
+}

src/test/ui/methods/issues/issue-84495.stderr

@@ -0,0 +1,13 @@
+error[E0599]: `i32` is not an iterator
+  --> $DIR/issue-84495.rs:3:24
+   |
+LL |     println!("{:?}", x.count());
+   |                        ^^^^^ `i32` is not an iterator
+   |
+   = note: the following trait bounds were not satisfied:
+           `i32: Iterator`
+           which is required by `&mut i32: Iterator`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0599`.