Relax A: Clone bound for rc::Weak::into_raw_and_alloc

[zetanumbers]

Makes this method to behave the same way as Box::into_raw_with_allocator and Vec::into_raw_parts_with_alloc.

I have also noticed the inconsistent presence and naming, should probably be addressed in the future.

[rustbot]

r? @Nilstrieb

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[Noratrieb]

This brings an unstable API in line with the other variants of it, being an obvious improvement relaxing a bound that didn't make sense in the first place, so I'm approving this without libs-api input.
@bors r+

[bors]

📌 Commit 255a1e9 has been approved by Nilstrieb

It is now in the queue for this repository.

[bors]

⌛ Testing commit 255a1e9 with merge 61a1dbd...

[bors]

☀️ Test successful - checks-actions
Approved by: Nilstrieb
Pushing 61a1dbd to master...

[rust-timer]

Finished benchmarking commit (61a1dbd): 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)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-4.8%	[-4.8%, -4.8%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-4.8%	[-4.8%, -4.8%]	1

Cycles

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)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-5.7%	[-6.2%, -5.4%]	3
All ❌✅ (primary)	-	-	0

Binary size

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

Bootstrap: 674.042s -> 672.072s (-0.29%)
Artifact size: 315.92 MiB -> 315.90 MiB (-0.00%)