Add benchmark files and update documentation

Author: Kobzol

collector/compile-benchmarks/README.md

@@ -32,6 +32,7 @@ They mostly consist of real-world crates.
   crate.
 - **helloworld**: A trivial program. Gives a lower bound on compile time.
 - **html5ever-0.26.0**: An HTML parser. Stresses macro parsing code.
+- **html5ever-0.31.0**: An HTML parser. Stresses macro parsing code.
 - **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`.

collector/compile-benchmarks/REUSE.toml

@@ -110,6 +110,11 @@ path = "html5ever-0.26.0/**"
 SPDX-FileCopyrightText = "The html5ever Project Developers"
 SPDX-License-Identifier = "MIT OR Apache-2.0"
 
+[[annotations]]
+path = "html5ever-0.31.0/**"
+SPDX-FileCopyrightText = "The html5ever Project Developers"
+SPDX-License-Identifier = "MIT OR Apache-2.0"
+
 [[annotations]]
 path = "hyper-0.14.18/**"
 SPDX-FileCopyrightText = "hyper contributors"

collector/compile-benchmarks/html5ever-0.31.0/0-println.patch

@@ -0,0 +1,12 @@
+diff --git a/src/util/str.rs b/src/util/str.rs
+index 2c0ec3e2..a78ff669 100644
+--- a/src/util/str.rs
++++ b/src/util/str.rs
+@@ -10,6 +10,7 @@
+ use std::fmt;
+ 
+ pub(crate) fn to_escaped_string<T: fmt::Debug>(x: &T) -> String {
++    println!("testing");
+     // FIXME: don't allocate twice
+     let string = format!("{x:?}");
+     string.chars().flat_map(|c| c.escape_default()).collect()

collector/compile-benchmarks/html5ever-0.31.0/Cargo.toml

@@ -86,3 +86,5 @@ version = "2.0.2"
 
 [features]
 trace_tokenizer = []
+
+[workspace]

collector/compile-benchmarks/html5ever-0.31.0/perf-config.json

@@ -1,4 +1,5 @@
 {
-  "artifact": "library",
-  "category": "primary"
+  "touch_file": "src/lib.rs",
+  "category": "primary",
+  "artifact": "library"
 }