Revert "Invoke backtrace-rs buildscript in std buildscript"

[pitaj]

This reverts commit 9367727 because it caused issues for projects building the standard library with non-cargo build systems.

See #116318 (comment)

r? workingjubilee

[rustbot]

r? @Mark-Simulacrum

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[rustbot]

These commits modify the Cargo.lock file. Unintentional changes to Cargo.lock can be introduced when switching branches and rebasing PRs.

If this was unintentional then you should revert the changes before this PR is merged.
Otherwise, you can ignore this comment.

[workingjubilee]

It would be nice if this made it into nightly, since it's breaking builds, so:
@bors r+ rollup=never p=1

[bors]

📌 Commit 49aa5a2 has been approved by workingjubilee

It is now in the queue for this repository.

[bors]

⌛ Testing commit 49aa5a2 with merge fcab248...

[bors]

☀️ Test successful - checks-actions
Approved by: workingjubilee
Pushing fcab248 to master...

[rust-timer]

Finished benchmarking commit (fcab248): 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)	3.2%	[3.2%, 3.2%]	1
Improvements ✅ (primary)	-1.3%	[-1.3%, -1.3%]	1
Improvements ✅ (secondary)	-3.1%	[-3.1%, -3.1%]	1
All ❌✅ (primary)	-1.3%	[-1.3%, -1.3%]	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: 627.829s -> 627.259s (-0.09%)
Artifact size: 271.31 MiB -> 271.34 MiB (0.01%)