Rollup of 12 pull requests#153217
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rust-bors[bot] merged 60 commits intorust-lang:mainfrom Feb 28, 2026
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- Remove some redundant `.clone_for_update()` and `.indent(IndentLevel::single())`
Example
---
```rust
fn main() {
if true {
$0if true
&& false
{
foo()
}
}
}
```
**Before this PR**
```rust
fn main() {
if true {
match true
&& false {
true => foo(),
_ => (),
}
}
}
```
**After this PR**
```rust
fn main() {
if true {
match true
&& false {
true => foo(),
_ => (),
}
}
}
```
the `check_ptr_ptr_cast` function had an early return when the source and
destination dyn trait objects shared the same principal trait def id:
if src_principal == dst_principal {
return Ok(());
}
this bypassed all three remaining checks that the code comment explicitly
listed as required: generic argument equality, projection equality, and
the auto-trait superset check. as a result, casts like
`*mut dyn Trait as *mut (dyn Trait + Send)` were silently accepted
instead of emitting E0804.
the fix removes the early return. `CastError::PtrPtrAddingAutoTraits` and
its diagnostic were already implemented — they just couldn't be reached.
the supertrait case (`trait Trait: Send`) continues to work correctly
because the auto-trait check already accounts for implied auto traits via
supertrait elaboration.
Currently the rustfmt slow test fails if you don't have a nightly toolchain installed. We install a nightly toolchain on CI, but it's a little confusing that tests can fail on a fresh checkout on a new laptop. Instead, skip this test if there's no nightly toolchain.
internal: Skip rustfmt test if nightly toolchain is missing
Example
---
```rust
enum Enum { TupleV(u32), RecordV { field: u32 }, UnitV }
use Enum::*;
fn func() {
if let $0 = unknown {}
}
```
**Before this PR**
```text
...
ev RecordV
ev TupleV
ev UnitV
bn RecordV {…} RecordV { field$1 }$0
bn TupleV(…) TupleV($1)$0
bn UnitV UnitV$0
kw mut
kw ref
```
**After this PR**
```text
...
bn RecordV {…} RecordV { field$1 }$0
bn TupleV(…) TupleV($1)$0
bn UnitV UnitV$0
kw mut
kw ref
```
…on-panic fix: Don't panic on invalid LSP notifications
…auto-trait-not-detected fix: Detect E0804 when casting raw ptr-to-dyn adds auto traits
fix: Fix scrutinee expr indent for replace_if_let_with_match
…nt-pat fix: no complete enum variant qualifier in pat
fix: Use -Zlockfile-path on every 1.95 nightly
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What is this?This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.Comparing 1d113d2 (parent) -> ba15679 (this PR) Test differencesShow 504 test diffsStage 0
Stage 1
Stage 2
Additionally, 432 doctest diffs were found. These are ignored, as they are noisy. Job group index
Test dashboardRun And then open Job duration changes
How to interpret the job duration changes?Job durations can vary a lot, based on the actual runner instance |
Collaborator
|
📌 Perf builds for each rolled up PR:
previous master: 1d113d2f30 In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
This was referenced Feb 28, 2026
Collaborator
|
Finished benchmarking commit (ba15679): comparison URL. Overall result: ❌ regressions - no action needed@rustbot label: -perf-regression Instruction countOur most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.
Max RSS (memory usage)Results (primary 1.0%, secondary -1.1%)A less reliable metric. May be of interest, but not used to determine the overall result above.
CyclesResults (primary -1.2%, secondary 3.4%)A less reliable metric. May be of interest, but not used to determine the overall result above.
Binary sizeThis benchmark run did not return any relevant results for this metric. Bootstrap: 508.307s -> 479.975s (-5.57%) |
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Successful merges:
rust-analyzersubtree update #153211 (rust-analyzersubtree update)#[doc(alias = "...")]attribute on inlined reexports #153136 (Correctly handle#[doc(alias = "...")]attribute on inlined reexports)tys to prevent ICE #152165 (Normalize capture placetys to prevent ICE)r? @ghost
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