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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/borrowck/borrow-immutable-upvar-mutation-impl-trait.stderr | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrow-immutable-upvar-mutation-impl-trait.stderr b/src/test/ui/borrowck/borrow-immutable-upvar-mutation-impl-trait.stderr new file mode 100644 index 000000000..6235e0db0 --- /dev/null +++ b/src/test/ui/borrowck/borrow-immutable-upvar-mutation-impl-trait.stderr @@ -0,0 +1,14 @@ +error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure + --> $DIR/borrow-immutable-upvar-mutation-impl-trait.rs:11:9 + | +LL | fn bar() -> impl Fn() -> usize { + | --- ------------------ change this to return `FnMut` instead of `Fn` +LL | let mut x = 0; +LL | move || { + | ------- in this closure +LL | x += 1; + | ^^^^^^ cannot assign + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0594`. |