Auto merge of #60104 - Centril:rollup-7vmae1a, r=Centril

Rollup of 16 pull requests

Successful merges:

 - #59915 (Implement event filtering for self-profiler.)
 - #59933 (Make clear that format padding doesn't work for Debug)
 - #60023 (implement specialized nth_back() for Bytes, Fuse and Enumerate)
 - #60032 (Remove unwanted z-index change)
 - #60041 (Simplify the returning of a Result a bit)
 - #60045 (Suggest appropriate path when calling associated item on bare types)
 - #60052 (Correct unused parameter diagnostic)
 - #60056 (Update rustfmt to 1.2.1)
 - #60060 (whitelist RTM x86 target cpu feature)
 - #60061 (Change suggestion of field when not in self context)
 - #60064 (Point at try `?` on errors affecting the err match arm of the desugared code)
 - #60078 (Use more realistic example for thread builder)
 - #60080 (Fix small errors in docs for `rchunks_exact` and `rchunks_exact_mut`.)
 - #60082 (Update miri)
 - #60097 (Use -mergefunc-use-aliases for any LLVM >= 8)
 - #60098 (libcore: deny `elided_lifetimes_in_paths`)

Failed merges:

r? @ghost

1 files changed, 0 insertions, 1 deletions

diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
index 8cf70b9a995..53b08cf5697 100644
--- a/src/librustdoc/html/static/rustdoc.css
+++ b/src/librustdoc/html/static/rustdoc.css
@@ -166,7 +166,6 @@ nav.sub {
 	top: 0;
 	height: 100vh;
 	overflow: auto;
-	z-index: 1;
 }
 
 .sidebar .block > ul > li {