clippy::style fixes

[matthiaskrgr]

r? @oli-obk

filter_map_identity
iter_kv_map
needless_question_mark
redundant_at_rest_pattern
filter_next
derivable_impls
useless_format

[fee1-dead]

r? @fee1-dead

@bors r+ rollup

[bors]

📌 Commit b594798 has been approved by fee1-dead

It is now in the queue for this repository.

[bors]

⌛ Testing commit b594798 with merge c474aa7...

[bors]

☀️ Test successful - checks-actions
Approved by: fee1-dead
Pushing c474aa7 to master...

[rust-timer]

Finished benchmarking commit (c474aa7): comparison URL.

Overall result: ✅ improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.4%	[-1.4%, -1.4%]	1
All ❌✅ (primary)	-	-	0

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)	2.0%	[2.0%, 2.0%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	2.0%	[2.0%, 2.0%]	1

Cycles

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

Binary size

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

Bootstrap: 651.658s -> 652.001s (0.05%)