From a93635ea44c1dda5bf462f471c91b51df53ba6d1 Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Fri, 4 Aug 2023 12:43:13 +0900
Subject: [PATCH] Fix build error with -Z minimal-versions

```
error[E0635]: unknown feature `proc_macro_span_shrink`
--> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/src/lib.rs:92:30
|
92 | feature(proc_macro_span, proc_macro_span_shrink)
| ^^^^^^^^^^^^^^^^^^^^^^
```
---
 async-stream-impl/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/async-stream-impl/Cargo.toml b/async-stream-impl/Cargo.toml
index 172d46f..7e37c95 100644
--- a/async-stream-impl/Cargo.toml
+++ b/async-stream-impl/Cargo.toml
@@ -12,7 +12,7 @@ repository = "https://github.com/tokio-rs/async-stream"
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1"
+proc-macro2 = "1.0.60"
 syn = { version = "2.0.2", features = ["full", "visit-mut"] }
 quote = "1"