Rollup of 6 pull requests

[matthiaskrgr]

Successful merges:

• docs/test: add UI test and long-form error docs for E0461 #106028 (docs/test: add UI test and long-form error docs for E0461)
• Suggest impl Iterator when possible for _ return type #106172 (Suggest impl Iterator when possible for _ return type)
• Deduplicate op methods #106173 (Deduplicate op methods)
• Recover fn keyword as Fn trait in bounds #106176 (Recover fn keyword as Fn trait in bounds)
• rustdoc: combine common sidebar background color CSS rules #106194 (rustdoc: combine common sidebar background color CSS rules)
• Silence knock-down errors on [type error] bindings #106199 (Silence knock-down errors on [type error] bindings)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

[matthiaskrgr]

@bors r+ rollup=never p=6

[bors]

📌 Commit d37cb3f has been approved by matthiaskrgr

It is now in the queue for this repository.

[bors]

⌛ Testing commit d37cb3f with merge 8edf9ec5ac21b078595cc302366080473731f9ae...

[bors]

💔 Test failed - checks-actions

[matthiaskrgr]

@bors retry

--- stderr -------------------------------
thread 'main' panicked at 'client.read_exact(&mut header) failed with Connection reset by peer (os error 104)', src/tools/remote-test-client/src/main.rs:310:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
------------------------------------------

[rust-log-analyzer]

The job armhf-gnu failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

test [ui] src/test/ui/typeck/issue-98982.rs ... ok
test [ui] src/test/ui/typeck/point-at-type-param-in-path-expr.rs ... ok
test [ui] src/test/ui/typeck/issue-92481.rs ... ok
test [ui] src/test/ui/typeck/issue-91328.rs ... ok
test [ui] src/test/ui/typeck/quiet-type-err-let-binding.rs ... ok
test [ui] src/test/ui/typeck/type-placeholder-fn-in-const.rs ... ok
test [ui] src/test/ui/typeck/typeck-cast-pointer-to-float.rs ... ok
test [ui] src/test/ui/typeck/struct-enum-wrong-args.rs ... ok
test [ui] src/test/ui/typeck/return_type_containing_closure.rs ... ok
---
---- [ui] src/test/ui/expr-copy.rs stdout ----

error: test run failed!
status: exit status: 101
command: RUST_TEST_THREADS="16" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/remote-test-client" "run" "0" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/expr-copy/a"
uploaded "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/expr-copy/a", waiting for result
------------------------------------------
--- stderr -------------------------------
thread 'main' panicked at 'client.read_exact(&mut header) failed with Connection reset by peer (os error 104)', src/tools/remote-test-client/src/main.rs:310:9

[bors]

⌛ Testing commit d37cb3f with merge 270c94e...

[bors]

☀️ Test successful - checks-actions
Approved by: matthiaskrgr
Pushing 270c94e to master...

[rust-timer]

📌 Perf builds for each rolled up PR:

PR#	Perf Build Sha
#106199	06397f11c89527870bc3db0be1f876f6958ad7a4
#106194	024f2f643fd3d1407b4e632bccc94890cab58fef
#106176	023278d2fb7463f49d775921c9492add5b70c124
#106173	a2ef550a5b4450cef2ec396d246390075b17442d
#106172	d3fbaf33f27fc77c77c273b28175ed3f8298058b
#106028	ab2f533cf289a125f489c994367aadb87dd5dbfb

previous master: 83a28ef095

In the case of a perf regression, run the following command for each PR you suspect might be the cause: @rust-timer build $SHA

[rust-timer]

Finished benchmarking commit (270c94e): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	2.5%	[2.5%, 2.5%]	1
Regressions ❌ (secondary)	2.6%	[2.6%, 2.6%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.1%	[-1.7%, -0.7%]	3
All ❌✅ (primary)	2.5%	[2.5%, 2.5%]	1

Cycles

This benchmark run did not return any relevant results for this metric.