warning: the feature `capture_disjoint_fields` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/simple-struct-min-capture.rs:4:12 | LL | #![feature(capture_disjoint_fields)] | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: `#[warn(incomplete_features)]` on by default = note: see issue #53488 for more information error[E0502]: cannot borrow `p` as immutable because it is also borrowed as mutable --> $DIR/simple-struct-min-capture.rs:23:22 | LL | let mut c = || { | -- mutable borrow occurs here LL | p.x += 10; | --- capture is mutable because of use here LL | println!("{:?}", p); | - first borrow occurs due to use of `p` in closure ... LL | println!("{:?}", p); | ^ immutable borrow occurs here LL | LL | c(); | - mutable borrow later used here error: aborting due to previous error; 1 warning emitted For more information about this error, try `rustc --explain E0502`.