Avoid obligation construction dance with query region constraints

[compiler-errors]

And some renaming...

r? @ghost

[compiler-errors]

@bors try @rust-timer queue

[bors]

⌛ Trying commit 7b9fdac with merge d224d8a...

[bors]

☀️ Try build successful - checks-actions
Build commit: d224d8a (d224d8a37e4be441fd033f5769ffb6d002f36f80)

[rust-timer]

Finished benchmarking commit (d224d8a): comparison URL.

Overall result: ❌✅ regressions and improvements - please read the text below

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.

Next Steps: If you can justify the regressions found in this try perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please fix the regressions and do another perf run. If the next run shows neutral or positive results, the label will be automatically removed.

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

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

	mean	range	count
Regressions ❌ (primary)	0.3%	[0.2%, 0.3%]	2
Regressions ❌ (secondary)	0.3%	[0.1%, 0.4%]	6
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.2%	[-0.2%, -0.2%]	1
All ❌✅ (primary)	0.3%	[0.2%, 0.3%]	2

Max RSS (memory usage)

Results (primary -2.2%)

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)	-	-	0
Improvements ✅ (primary)	-2.2%	[-2.2%, -2.2%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-2.2%	[-2.2%, -2.2%]	1

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: 777.175s -> 776.048s (-0.15%)
Artifact size: 365.63 MiB -> 365.45 MiB (-0.05%)

[compiler-errors]

@bors try @rust-timer queue

[bors]

⌛ Trying commit e686e77 with merge f2b1abc...

[compiler-errors]

@bors try @rust-timer queue

[bors]

⌛ Trying commit d531757 with merge be96d2c49f9f794e4d05033657a99c83cedbe103...

[rust-log-analyzer]

The job dist-x86_64-linux failed! Check out the build log: (web) (plain)

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

file:.git/config remote.origin.url=https://github.com/rust-lang-ci/rust
file:.git/config remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
file:.git/config gc.auto=0
file:.git/config http.https://github.com/.extraheader=AUTHORIZATION: basic ***
file:.git/config branch.try.remote=origin
file:.git/config branch.try.merge=refs/heads/try
file:.git/config submodule.library/backtrace.active=true
file:.git/config submodule.library/backtrace.url=https://github.com/rust-lang/backtrace-rs.git
file:.git/config submodule.library/stdarch.active=true
file:.git/config submodule.library/stdarch.url=https://github.com/rust-lang/stdarch.git
file:.git/config submodule.src/doc/book.active=true
---
Caused by:
    Command RUST_BACKTRACE=full python3 /checkout/x.py build --target x86_64-unknown-linux-gnu --host x86_64-unknown-linux-gnu --stage 2 library/std --set rust.deny-warnings=false --rust-profile-generate /tmp/tmp-multistage/opt-artifacts/rustc-pgo --set llvm.thin-lto=false --set llvm.link-shared=true [at /checkout/obj] has failed with exit code Some(1)

Stack backtrace:
   0: <anyhow::Error>::msg::<alloc::string::String>
             at /rust/deps/anyhow-1.0.98/src/backtrace.rs:27:14
   1: <opt_dist::exec::CmdBuilder>::run
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/exec.rs:80:17
   2: <opt_dist::exec::Bootstrap>::run
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/exec.rs:184:9
   3: opt_dist::execute_pipeline::{closure#1}::{closure#0}
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/main.rs:236:13
   4: <opt_dist::timer::TimerSection>::section::<opt_dist::execute_pipeline::{closure#1}::{closure#0}, ()>
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/timer.rs:111:22
   5: opt_dist::execute_pipeline::{closure#1}
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/main.rs:225:9
   6: <opt_dist::timer::TimerSection>::section::<opt_dist::execute_pipeline::{closure#1}, opt_dist::training::RustcPGOProfile>
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/timer.rs:111:22
   7: opt_dist::execute_pipeline
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/main.rs:222:29
   8: opt_dist::main
             at /rustc/f2b1abc3c7d100ac20c50276e36f48be8e9c5c36/src/tools/opt-dist/src/main.rs:424:18
   9: <fn() -> core::result::Result<(), anyhow::Error> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/core/src/ops/function.rs:250:5
  10: std::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core::result::Result<(), anyhow::Error>, core::result::Result<(), anyhow::Error>>
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/std/src/sys/backtrace.rs:152:18
  11: std::rt::lang_start::<core::result::Result<(), anyhow::Error>>::{closure#0}
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/std/src/rt.rs:199:18
  12: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/core/src/ops/function.rs:284:13
  13: std::panicking::try::do_call
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/std/src/panicking.rs:589:40
  14: std::panicking::try
             at /rustc/5dadfd5c417f0b66816cb7ca662859e2c8751fb3/library/std/src/panicking.rs:552:19

[bors]

☀️ Try build successful - checks-actions
Build commit: be96d2c (be96d2c49f9f794e4d05033657a99c83cedbe103)

[rust-timer]

Finished benchmarking commit (be96d2c): comparison URL.

Overall result: ❌ regressions - no action needed

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-perf -perf-regression

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	0.3%	[0.1%, 0.6%]	8
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results (primary 0.8%, secondary -0.8%)

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)	0.8%	[0.8%, 0.8%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.8%	[-0.8%, -0.8%]	1
All ❌✅ (primary)	0.8%	[0.8%, 0.8%]	1

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: 776.4s -> 777.347s (0.12%)
Artifact size: 365.61 MiB -> 365.48 MiB (-0.04%)