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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-23966.stderr | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-23966.stderr b/src/test/ui/issues/issue-23966.stderr new file mode 100644 index 000000000..ae8233d5c --- /dev/null +++ b/src/test/ui/issues/issue-23966.stderr @@ -0,0 +1,18 @@ +error[E0277]: expected a `FnMut<(_, char)>` closure, found `()` + --> $DIR/issue-23966.rs:2:32 + | +LL | "".chars().fold(|_, _| (), ()); + | ---- ^^ expected an `FnMut<(_, char)>` closure, found `()` + | | + | required by a bound introduced by this call + | + = help: the trait `FnMut<(_, char)>` is not implemented for `()` +note: required by a bound in `fold` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + | +LL | F: FnMut(B, Self::Item) -> B, + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `fold` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. |