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Strip paramenv#157970

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Strip paramenv#157970
jdonszelmann wants to merge 3 commits into
rust-lang:mainfrom
jdonszelmann:strip-paramenv

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@rustbot rustbot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Jun 16, 2026
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@bors try parent=d5c2f17a7a29a89c4511d0c6ab7f0491f9a500d5 @rust-timer queue

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@rustbot rustbot added the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Jun 16, 2026
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@bors try @rust-timer queue

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rust-bors Bot pushed a commit that referenced this pull request Jun 17, 2026
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☀️ Try build successful (CI)
Build commit: 58d0c24 (58d0c24acbd969df515e5890f8e8b1de2a4a6581)
Base parent: 98594f4 (98594f404ee741f97fefbae4aca049cde911bc94)

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Finished benchmarking commit (58d0c24): comparison URL.

Overall result: ✅ improvements - no action needed

Benchmarking means the PR may be perf-sensitive. It's automatically marked not fit for rolling up. Overriding is possible but disadvised: it risks changing compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
-2.0% [-4.3%, -0.1%] 26
All ❌✅ (primary) - - 0

Max RSS (memory usage)

Results (secondary -2.4%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
3.1% [3.1%, 3.1%] 1
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
-2.6% [-16.1%, -0.9%] 28
All ❌✅ (primary) - - 0

Cycles

Results (secondary -3.3%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
3.0% [1.6%, 4.3%] 2
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
-4.0% [-11.1%, -2.1%] 17
All ❌✅ (primary) - - 0

Binary size

This perf run didn't have relevant results for this metric.

Bootstrap: 523.739s -> 481.182s (-8.13%)
Artifact size: 401.37 MiB -> 391.25 MiB (-2.52%)

@rustbot rustbot removed the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Jun 17, 2026
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S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)

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4 participants