Suggest assoc fn new when trying to build tuple struct with private fields

[estebank]

Fix #22488.

[rustbot]

r? @petrochenkov

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[petrochenkov]

r=me with the comment updated.
@rustbot author

[estebank]

@bors r=petrochenkov

[bors]

📌 Commit 1c161b7 has been approved by petrochenkov

It is now in the queue for this repository.

[estebank]

@bors r=petrochenkov

[bors]

📌 Commit 87dc85d has been approved by petrochenkov

It is now in the queue for this repository.

[bors]

⌛ Testing commit 87dc85d with merge e4e3a23...

[bors]

💔 Test failed - checks-actions

[rust-log-analyzer]

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

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

##[endgroup] [TIMING] core::build_steps::tool::ToolBuild { compiler: Compiler { stage: 0, host: x86_64-unknown-linux-gnu }, target: x86_64-unknown-linux-gnu, tool: "tidy", path: "src/tools/tidy", mode: ToolBootstrap, is_optional_tool: false, source_type: InTree, extra_features: [], allow_features: "" } -- 25.880 [TIMING] core::build_steps::tool::Tidy { compiler: Compiler { stage: 0, host: x86_64-unknown-linux-gnu }, target: x86_64-unknown-linux-gnu } -- 0.000 tidy check thread 'deps (.)' panicked at src/tools/tidy/src/deps.rs:389:20: 

[petrochenkov]

@bors retry

[bors]

⌛ Testing commit 87dc85d with merge 6888929...

[bors]

☀️ Test successful - checks-actions
Approved by: petrochenkov
Pushing 6888929 to master...

[rust-timer]

Finished benchmarking commit (6888929): 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)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.5%	[-2.5%, -2.5%]	1
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: 636.074s -> 635.341s (-0.12%)
Artifact size: 304.47 MiB -> 304.51 MiB (0.01%)