Regressions primarily in doc builds. No significant changes in cycle or max-rss counts.
Triage done by @simulacrum. Revision range: 27e38f8f..d4822c2d
Summary:
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
0.5% | [0.2%, 1.0%] | 61 |
| Regressions ❌ (secondary) |
0.9% | [0.2%, 1.5%] | 30 |
| Improvements ✅ (primary) |
-2.9% | [-5.0%, -0.6%] | 7 |
| Improvements ✅ (secondary) |
-1.5% | [-5.0%, -0.2%] | 28 |
| All ❌✅ (primary) | 0.1% | [-5.0%, 1.0%] | 68 |
1 Regressions, 1 Improvements, 4 Mixed; 1 of them in rollups 47 artifact comparisons made in total
Clean middle generics using paren sugar if trait has #[rustc_paren_sugar] #132697 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
0.2% | [0.1%, 0.4%] | 8 |
| Regressions ❌ (secondary) |
0.3% | [0.2%, 0.4%] | 16 |
| Improvements ✅ (primary) |
- | - | 0 |
| Improvements ✅ (secondary) |
- | - | 0 |
| All ❌✅ (primary) | 0.2% | [0.1%, 0.4%] | 8 |
Doc-only regressions, no fix directly planned (prioritizing code clarity), but inspired some unrelated cleanup in rust-lang/rust#132886.
rustdoc-search: simplify rules for generics and type params #127589 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
0.2% | [0.1%, 0.5%] | 15 |
| Regressions ❌ (secondary) |
0.4% | [0.1%, 0.5%] | 19 |
| Improvements ✅ (primary) |
- | - | 0 |
| Improvements ✅ (secondary) |
-2.4% | [-2.4%, -2.4%] | 1 |
| All ❌✅ (primary) | 0.2% | [0.1%, 0.5%] | 15 |
Doc-only regressions, likely genuine given the change.
Only disable cache if predicate has opaques within it #132625 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
- | - | 0 |
| Regressions ❌ (secondary) |
- | - | 0 |
| Improvements ✅ (primary) |
-2.7% | [-5.0%, -0.2%] | 7 |
| Improvements ✅ (secondary) |
-3.0% | [-5.1%, -0.3%] | 10 |
| All ❌✅ (primary) | -2.7% | [-5.0%, -0.2%] | 7 |
Add new unstable feature const_eq_ignore_ascii_case #131721 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
0.2% | [0.2%, 0.2%] | 1 |
| Regressions ❌ (secondary) |
- | - | 0 |
| Improvements ✅ (primary) |
-0.5% | [-0.7%, -0.1%] | 4 |
| Improvements ✅ (secondary) |
- | - | 0 |
| All ❌✅ (primary) | -0.3% | [-0.7%, 0.2%] | 5 |
Probably mostly luck of some kind, change itself is library-only.
Emit warning when calling/declaring functions with unavailable vectors. #132173 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
0.5% | [0.2%, 1.0%] | 36 |
| Regressions ❌ (secondary) |
0.6% | [0.2%, 0.9%] | 6 |
| Improvements ✅ (primary) |
-0.4% | [-0.4%, -0.4%] | 1 |
| Improvements ✅ (secondary) |
-0.1% | [-0.1%, -0.1%] | 1 |
| All ❌✅ (primary) | 0.5% | [-0.4%, 1.0%] | 37 |
Regression, but a bunch of optimization work already went into it (see rust-lang/rust#132173 (comment)).
Rollup of 6 pull requests #132831 (Comparison Link)
| (instructions:u) | mean | range | count |
|---|---|---|---|
| Regressions ❌ (primary) |
- | - | 0 |
| Regressions ❌ (secondary) |
1.4% | [1.3%, 1.5%] | 6 |
| Improvements ✅ (primary) |
- | - | 0 |
| Improvements ✅ (secondary) |
-0.7% | [-1.4%, -0.2%] | 13 |
| All ❌✅ (primary) | - | - | 0 |
Queued up one trial build. Likely a real regression, but not necessarily worth digging deeper given limited impact (few benchmarks).