rust: double free in Vec::from_iter function if freeing the element panics

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::fromiter function if freeing the element panics...

In the standard library in Rust before 1.52.0 a double free can occur in the Vec::from_iter function if freeing the element panics.

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CVE-2021-31162

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::fromiter function if freeing the element panics...