ci: fix up testing the guides

.github/workflows/check_guides.sh

@@ -1,4 +1,6 @@
-#!/bin/sh
+#!/bin/bash
+
+status=0
 
 for value in legacy stable; do
   if [ ! -e "$value/Cargo.toml" ]; then
@@ -11,7 +13,6 @@ for value in legacy stable; do
     case "$value" in
       legacy)
         cat >> "$value/Cargo.toml" <<-EOF
-        [dependencies]
         futures = "0.3"
         hyper = { version = "0.14", features = ["full"] }
         hyper-tls = "0.5"
@@ -20,12 +21,11 @@ EOF
         ;;
       stable)
         cat >> "$value/Cargo.toml" <<-EOF
-        [dependencies]
         hyper = { version = "1", features = ["full"] }
         tokio = { version = "1", features = ["full"] }
         http-body-util = "0.1"
         hyper-util = { version = "0.1", features = ["full"] }
-        tower = "0.4"
+        tower = { version = "0.4", features = ["util"] }
 EOF
         ;;
     esac
@@ -43,7 +43,6 @@ EOF
     exit $?
   fi
 
-  status=0
   for f in $(git ls-files | grep "^_$value\/.*\.md$"); do
     test_file "$f"
     s=$?

_stable/client/post.md

@@ -19,7 +19,7 @@ For the body, we have a couple of options. We can use a simple string, a JSON st
 # extern crate hyper;
 # extern crate hyper_util;
 # extern crate tokio;
-# use http_body_util::Empty;
+# use http_body_util::{Empty, Full};
 # use hyper::body::Bytes;
 # use hyper::Request;
 # use hyper_util::rt::TokioIo;
@@ -74,4 +74,4 @@ println!("Response status: {}", res.status());
 # Ok(())
 # }
 # fn main() {}
-```
+```

_stable/server/middleware.md

@@ -244,7 +244,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
         });
     }
 }
-
+# }
 # fn main() {}
 ```