1 files changed, 25 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/issue_4266.stderr b/src/tools/clippy/tests/ui/issue_4266.stderr
new file mode 100644
index 000000000..e5042aaa7
--- /dev/null
+++ b/src/tools/clippy/tests/ui/issue_4266.stderr
@@ -0,0 +1,25 @@
+error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
+  --> $DIR/issue_4266.rs:3:1
+   |
+LL | async fn sink1<'a>(_: &'a str) {} // lint
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `-D clippy::needless-lifetimes` implied by `-D warnings`
+
+error: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
+  --> $DIR/issue_4266.rs:7:1
+   |
+LL | async fn one_to_one<'a>(s: &'a str) -> &'a str {
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: methods called `new` usually take no `self`
+  --> $DIR/issue_4266.rs:27:22
+   |
+LL |     pub async fn new(&mut self) -> Self {
+   |                      ^^^^^^^^^
+   |
+   = note: `-D clippy::wrong-self-convention` implied by `-D warnings`
+   = help: consider choosing a less ambiguous name
+
+error: aborting due to 3 previous errors
+