add hyper-0.14.18 benchmark scaffolding

Author: lqd

collector/benchmarks/README.md

@@ -35,6 +35,9 @@ They mostly consist of real-world crates.
 - **html5ever**: An HTML parser. Stresses macro parsing code significantly.
 - **hyper-2**: A fairly large crate. Utilizes async/await, and used by
   many Rust programs.
+- **hyper-0.14.18**: A fairly large crate. Utilizes async/await, and used by
+  many Rust programs. The crate uses cargo features to enable large portions of its
+  structure and is built with `--features client,http1,http2,server,stream`.
 - **image-0.24.1**: Basic image processing functions and methods for 
   converting to and from various image formats. Used often in graphics 
   programming.

collector/benchmarks/hyper-0.14.18/0-println.patch

@@ -0,0 +1,12 @@
+diff --git a/src/body/body.rs b/src/body/body.rs
+index 9dc1a034..6f2cb1cf 100644
+--- a/src/body/body.rs
++++ b/src/body/body.rs
+@@ -140,6 +140,7 @@ impl Body {
+     }
+ 
+     pub(crate) fn new_channel(content_length: DecodedLength, wanter: bool) -> (Sender, Body) {
++        println!("testing");
+         let (data_tx, data_rx) = mpsc::channel(0);
+         let (trailers_tx, trailers_rx) = oneshot::channel();
+ 

collector/benchmarks/hyper-0.14.18/Cargo.toml

@@ -325,3 +325,5 @@ tcp = [
 
 [target."cfg(any(target_os = \"linux\", target_os = \"macos\"))".dev-dependencies.pnet_datalink]
 version = "0.27.2"
+
+[workspace]

collector/benchmarks/hyper-0.14.18/perf-config.json

@@ -1,3 +1,4 @@
 {
+  "cargo_opts": "--features client,http1,http2,server,stream",
   "category": "primary"
 }