Add track_caller attribute to Result::unwrap_or_else

[ravenclaw900]

Fixes issue where panics in unwrap_or_else callbacks marked with the track_caller attribute appear as errors in core.

[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @Mark-Simulacrum (or someone else) soon.

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[fmease]

CC #115302

[Mark-Simulacrum]

@bors r+

[bors]

📌 Commit ba0b7f0 has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit ba0b7f0 with merge 30ec747...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing 30ec747 to master...

[rust-timer]

Finished benchmarking commit (30ec747): 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)	-2.0%	[-2.7%, -1.1%]	13
Improvements ✅ (secondary)	-3.5%	[-3.5%, -3.5%]	1
All ❌✅ (primary)	-2.0%	[-2.7%, -1.1%]	13

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)	0.5%	[0.5%, 0.6%]	2
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.5%	[0.5%, 0.6%]	2

Binary size

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

Bootstrap: 626.835s -> 631.015s (0.67%)
Artifact size: 273.31 MiB -> 273.33 MiB (0.01%)