Incorrect collect suggestion - borrow doesn't live long enough

I tried this code:

    let string_clone: Vec<_> = concat_string.item.lines().map(|x| x.to_string()).collect();

    if objects {
        Ok(string_clone
            .into_iter()...

Clippy suggests turning this into:

Ok(concat_string.item.lines().map(|x| x.to_string())...

I expected to see this happen: clippy to suggest a correct replacement

Instead, this happened: clippy suggests the above, which will not compile as concat_string.item will not live long enough.

Meta

• cargo clippy -V: e.g. clippy 0.0.212 (f455e46 2020-06-20)
• rustc -Vv:

C:\Source\nushell(main)> cargo clippy -V
clippy 0.1.54 (ed597e7e 2021-06-08)
C:\Source\nushell(main)> rustc -Vv
rustc 1.54.0-nightly (ed597e7e1 2021-06-08)
binary: rustc
commit-hash: ed597e7e19d0fe716d9f81b1e840a5abbfd7c28d
commit-date: 2021-06-08
host: x86_64-pc-windows-msvc
release: 1.54.0-nightly
LLVM version: 12.0.1

<backtrace>

Start by reproducing the reported snippet with cargo clippy and identify which lint emits the collect suggestion. Trace that lint's suggestion logic, then add a regression case showing that the suggested replacement compiles and preserves the intended lifetime behavior.