I posted this message in the https://internals.rust-lang.org forum, could somebody confirm (or not) the problem? Rust 1.92.0 pre-release testing - #6 by tdelmas - announcements - Rust Internals

Rust Release Notes

• iter::Repeat::last and count will now panic, rather than looping infinitely.

It seems they added a panic! for last without documenting it, or am I missing it? (count does document the panic! in Iterator: Iterator in std::iter - Rust)

• last in Iterator in std::iter - Rust
• last in Repeat in std::iter - Rust

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