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-rw-r--r--src/test/ui/issues/issue-49824.stderr19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-49824.stderr b/src/test/ui/issues/issue-49824.stderr
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+++ b/src/test/ui/issues/issue-49824.stderr
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+error: captured variable cannot escape `FnMut` closure body
+ --> $DIR/issue-49824.rs:4:9
+ |
+LL | let mut x = 0;
+ | ----- variable defined here
+LL | || {
+ | - inferred to be a `FnMut` closure
+LL | / || {
+LL | |
+LL | | let _y = &mut x;
+ | | - variable captured here
+LL | | }
+ | |_________^ returns a closure that contains a reference to a captured variable, which then escapes the closure body
+ |
+ = note: `FnMut` closures only have access to their captured variables while they are executing...
+ = note: ...therefore, they cannot allow references to captured variables to escape
+
+error: aborting due to previous error
+