outlives: ignore lifetimes shallowly found in ty::FnDefs.

[eddyb]

Fixes#70917 by restoring the pre-#70164 behavior for now.

r? @nikomatsakis

[eddyb]

@bors try

[bors]

⌛ Trying commit f86f032 with merge a571be2b074730b31d0bb62a6984dde8e1f57278...

[bors]

☀️ Try build successful - checks-azure
Build commit: a571be2b074730b31d0bb62a6984dde8e1f57278 (a571be2b074730b31d0bb62a6984dde8e1f57278)

[eddyb]

@craterbot check crates=https://crater-reports.s3.amazonaws.com/pr-70917/retry-regressed-list.txt

[craterbot]

👌 Experiment pr-71218 created and queued.
🤖 Automatically detected try build a571be2b074730b31d0bb62a6984dde8e1f57278
🔍 You can check out the queue and this experiment's details.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

[craterbot]

🚧 Experiment pr-71218 is now running

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

[craterbot]

🎉 Experiment pr-71218 is completed!
📊 0 regressed and 121 fixed (194 total)
📰 Open the full report.

⚠️ If you notice any spurious failure please add them to the blacklist!
ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

[eddyb]

So it's 121 fixed + 67 unchanged because the newly published version of proptest fixed 67 out of 188 regressions, and this is much easier to see because we reran crater on the list of regressed crates.

@bors p=10 rollup=never (this is a regression fix that needs to get in before beta branches off)

[nikomatsakis]

@bors r+

[bors]

📌 Commit f86f032 has been approved by nikomatsakis

[bors]

⌛ Testing commit f86f032 with merge 52fa23a...

[bors]

☀️ Test successful - checks-azure
Approved by: nikomatsakis
Pushing 52fa23a to master...