1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-22577.rs b/src/test/ui/issues/issue-22577.rs
new file mode 100644
index 000000000..8aca21bf1
--- /dev/null
+++ b/src/test/ui/issues/issue-22577.rs
@@ -0,0 +1,26 @@
+// run-pass
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+use std::{fs, net};
+
+fn assert_both<T: Send + Sync>() {}
+fn assert_send<T: Send>() {}
+
+fn main() {
+    assert_both::<fs::File>();
+    assert_both::<fs::Metadata>();
+    assert_both::<fs::ReadDir>();
+    assert_both::<fs::DirEntry>();
+    assert_both::<fs::OpenOptions>();
+    assert_both::<fs::Permissions>();
+
+    assert_both::<net::TcpStream>();
+    assert_both::<net::TcpListener>();
+    assert_both::<net::UdpSocket>();
+    assert_both::<net::SocketAddr>();
+    assert_both::<net::SocketAddrV4>();
+    assert_both::<net::SocketAddrV6>();
+    assert_both::<net::Ipv4Addr>();
+    assert_both::<net::Ipv6Addr>();
+}