Fix x86_64-gnu-llvm-15 CI tests

[Kobzol]

The CI script was broken - if there was a test failure in the first command chain (inside the if), CI would not report the failure.

It happened because there were two command chains separated by && in the script, and since set -e doesn't exit for chained commands, if the first chain has failed, the script would happily continue forward, ignoring any test failures.

This could be fixed e.g. by adding some || exit 1 to the first chain, but I suppose that the && chaining is unnecessary here anyway.

Reported on Zulip.

Fixes: #116867

[rustbot]

r? @Mark-Simulacrum

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[lqd]

fixes: #116867

[Kobzol]

Ok, this should now be ready.

@rustbot ready

[lqd]

This looks good to me and matches the fix Eric suggested in that zulip topic. The #[cfg(bootstrap)] is also in a rust test, not a script, so will also show up in the next beta bump procedure.

[Mark-Simulacrum]

@bors r+ rollup=iffy

[bors]

📌 Commit c2524bc has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit c2524bc with merge 9e3f784...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing 9e3f784 to master...

[rust-timer]

Finished benchmarking commit (9e3f784): 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)	2.1%	[2.1%, 2.1%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-4.0%	[-4.5%, -3.0%]	3
All ❌✅ (primary)	-	-	0

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: 631.011s -> 632.258s (0.20%)
Artifact size: 301.90 MiB -> 301.94 MiB (0.01%)