Update compiler/rustc_mir/src/borrow_check/diagnostics/explain_borrow.rs

Co-authored-by: Niko Matsakis <niko@alum.mit.edu>

Author: ChrisPardy

compiler/rustc_mir/src/borrow_check/diagnostics/explain_borrow.rs

@@ -119,7 +119,7 @@ impl BorrowExplanation {
                     let path_span = path_span.unwrap();
                     // path_span is only present in the case of closure capture
                     assert!(matches!(later_use_kind, LaterUseKind::ClosureCapture));
-                    if !borrow_span.map_or(false, |sp| sp.overlaps(var_or_use_span)) {
+                    if borrow_span.map(|sp| !sp.overlaps(var_or_use_span)).unwrap_or(true) {
                         let path_label = "used here by closure";
                         let capture_kind_label = message;
                         err.span_label(