From 47cc221e9827ab1b92f20353f423916a3f14d182 Mon Sep 17 00:00:00 2001
From: csmoe <csmoe@msn.com>
Date: Fri, 22 May 2020 10:11:17 +0800
Subject: [PATCH] add mcve for issue 72442

---
 src/test/ui/async-await/issue-72442.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 src/test/ui/async-await/issue-72442.rs

diff --git a/src/test/ui/async-await/issue-72442.rs b/src/test/ui/async-await/issue-72442.rs
new file mode 100644
index 000000000000..cced1da48f69
--- /dev/null
+++ b/src/test/ui/async-await/issue-72442.rs
@@ -0,0 +1,25 @@
+// edition:2018
+
+use std::fs::File;
+use std::future::Future;
+use std::io::prelude::*;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    block_on(async {
+        {
+            let path = std::path::Path::new(".");
+            let mut f = File::open(path.to_str())?;
+            //~^ ERROR the trait bound `std::option::Option<&str>: std::convert::AsRef<std::path::Path>` is not satisfied
+            let mut src = String::new();
+            f.read_to_string(&mut src)?;
+            Ok(())
+        }
+    })
+}
+
+fn block_on<F>(f: F) -> F::Output
+where
+    F: Future<Output = Result<(), Box<dyn std::error::Error>>>,
+{
+    Ok(())
+}