remove builtin Copy and Clone impl for float and int infer

[lcnr]

it's only change is whether {integer}: Copy is ambiguous, this has the following properties

• these goals get proven earlier, potentially resulting in slightly better perf
• it causes inconsistent behavior and ICE if there do not exist impls for all integers, causing issues when using #[no_core]
• it means Clone has user-facing differences from other traits from core with the new solver because it can potentially guide inference there
• it's just very sus™ to have a builtin impl which applies during type inference but not afterwards

[rustbot]

r? @b-naber

(rustbot has picked a reviewer for you, use r? to override)

[rustbot]

Some changes occurred to the core trait solver

cc @rust-lang/initiative-trait-system-refactor

[lcnr]

@bors try @rust-timer queue

[bors]

⌛ Trying commit bb76fde with merge 4f9805ec4702c97302dd8116b6f848c194756acc...

[compiler-errors]

r=me if perf comes back good, this doesn't seem to me like something that should cause issues other than possibly changing the order that we process obligations, which isn't guaranteed anyways.

[bors]

☀️ Try build successful - checks-actions
Build commit: 4f9805ec4702c97302dd8116b6f848c194756acc (4f9805ec4702c97302dd8116b6f848c194756acc)

[rust-timer]

Finished benchmarking commit (4f9805ec4702c97302dd8116b6f848c194756acc): comparison URL.

Overall result: no relevant changes - 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 benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

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)	2.1%	[2.1%, 2.1%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

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: 632.877s -> 633.23s (0.06%)

[compiler-errors]

@bors r+

[bors]

📌 Commit bb76fde has been approved by compiler-errors

It is now in the queue for this repository.

[bors]

⌛ Testing commit bb76fde with merge 49af618...

[bors]

☀️ Test successful - checks-actions
Approved by: compiler-errors
Pushing 49af618 to master...

[rust-timer]

Finished benchmarking commit (49af618): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

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)	6.8%	[6.8%, 6.8%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

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: 632.358s -> 633.298s (0.15%)