[PERF ONLY] Revert #98277

[compiler-errors]

#98656 (comment)

r? @ghost

[rustbot]

Some changes occurred in src/tools/cargo

cc @ehuss

The Miri submodule was changed

cc @rust-lang/miri

[compiler-errors]

@bors try @rust-timer queue

[rust-timer]

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

[bors]

⌛ Trying commit d93c2b596abdf6082ba6a5830b997a804b73ea33 with merge 51d5d48ec324cafeeaf1142349666db780fe75df...

[bors]

💔 Test failed - checks-actions

[compiler-errors]

@bors try

[bors]

⌛ Trying commit 3305cb0 with merge b26626370d30898a36d7e30f799ce971b196e0a3...

[rust-log-analyzer]

The job x86_64-gnu-llvm-12 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

1 error[E0277]: the trait bound `String: Copy` is not satisfied
2   --> $DIR/assoc-type-eq-with-dyn-atb-fail.rs:32:18
3    |
Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu target=x86_64-unknown-linux-gnu
- <<<<<<< HEAD
5 LL |     fn func() -> Self::Out {
6    |                  ^^^^^^^^^ the trait `Copy` is not implemented for `String`
- =======
- LL |         Box::new(AssocNoCopy)
-    |         ^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
-    |
-    = note: required for the cast to the object type `dyn Bar<Assoc = <AssocNoCopy as Thing>::Out::{opaque#0}>`
- >>>>>>> parent of 862873d20bb (Note concrete type being coerced into object)
14 error: aborting due to previous error
15 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-type-bounds/assoc-type-eq-with-dyn-atb-fail/assoc-type-eq-with-dyn-atb-fail.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args associated-type-bounds/assoc-type-eq-with-dyn-atb-fail.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/associated-type-bounds/assoc-type-eq-with-dyn-atb-fail.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-type-bounds/assoc-type-eq-with-dyn-atb-fail" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/associated-type-bounds/assoc-type-eq-with-dyn-atb-fail/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `String: Copy` is not satisfied
   |
LL |     fn func() -> Self::Out {
   |                  ^^^^^^^^^ the trait `Copy` is not implemented for `String`

[bors]

☀️ Try build successful - checks-actions
Build commit: b26626370d30898a36d7e30f799ce971b196e0a3 (b26626370d30898a36d7e30f799ce971b196e0a3)

[rust-timer]

Queued b26626370d30898a36d7e30f799ce971b196e0a3 with parent 54f79ba, future comparison URL.

[rust-timer]

Finished benchmarking commit (b26626370d30898a36d7e30f799ce971b196e0a3): comparison url.

Instruction count

• Primary benchmarks: no relevant changes found
• Secondary benchmarks: 🎉 relevant improvement found

	mean1	max	count2
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	N/A	N/A	0
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	-0.2%	-0.2%	1
All 😿🎉 (primary)	N/A	N/A	0

Max RSS (memory usage)

Results

• Primary benchmarks: no relevant changes found
• Secondary benchmarks: 🎉 relevant improvements found

	mean1	max	count2
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	N/A	N/A	0
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	-3.4%	-4.6%	2
All 😿🎉 (primary)	N/A	N/A	0

Cycles

Results

• Primary benchmarks: no relevant changes found
• Secondary benchmarks: 😿 relevant regression found

	mean1	max	count2
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	4.7%	4.7%	1
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	N/A	N/A	0

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

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

Footnotes

1. the arithmetic mean of the percent change ↩ ↩² ↩³

2. number of relevant changes ↩ ↩² ↩³