Static rustc_ap_rustc_lint_defs::builtin::MUTABLE_BORROW_RESERVATION_CONFLICT

pub static MUTABLE_BORROW_RESERVATION_CONFLICT: &Lint

The mutable_borrow_reservation_conflict lint detects the reservation of a two-phased borrow that conflicts with other shared borrows.

Example

let mut v = vec![0, 1, 2];
let shared = &v;
v.push(shared.len());

{{produces}}

Explanation

This is a future-incompatible lint to transition this to a hard error in the future. See issue #59159 for a complete description of the problem, and some possible solutions.