1 files changed, 19 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-15783.stderr b/tests/ui/issues/issue-15783.stderr
new file mode 100644
index 000000000..660dfe9ed
--- /dev/null
+++ b/tests/ui/issues/issue-15783.stderr
@@ -0,0 +1,19 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-15783.rs:8:19
+   |
+LL |     let msg = foo(x);
+   |               --- ^ expected slice `[&str]`, found array `[&str; 1]`
+   |               |
+   |               arguments to this function are incorrect
+   |
+   = note: expected enum `Option<&[&str]>`
+              found enum `Option<&[&str; 1]>`
+note: function defined here
+  --> $DIR/issue-15783.rs:1:8
+   |
+LL | pub fn foo(params: Option<&[&str]>) -> usize {
+   |        ^^^ -----------------------
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.