Add benchmark files and update documentation

Author: Kobzol

collector/compile-benchmarks/README.md

@@ -25,10 +25,8 @@ They mostly consist of real-world crates.
 - **cranelift-codegen-0.82.1**: The largest crate from a code generator. Used by
   wasmtime. Stresses obligation processing.
 - **cranelift-codegen-0.119.0**: The largest crate from a code generator. Used by wasmtime. Stresses obligation processing.
-- **diesel-1.4.8**: A type safe SQL query builder. Utilizes the type system to
-  ensure a lot of invariants. Stresses anything related to resolving
-  trait bounds, by having a lot of trait impls for a large number of different
-  types.
+- **diesel-1.4.8**: A type-safe SQL query builder. Utilizes the type system to ensure a lot of invariants. Stresses anything related to resolving trait bounds, by having a lot of trait impls for a large number of different types.
+- **diesel-2.2:10**: A type-safe SQL query builder. Utilizes the type system to ensure a lot of invariants. Stresses anything related to resolving trait bounds, by having a lot of trait impls for a large number of different types.
 - **exa-0.10.1**: An `ls` replacement. A widely-used utility, and a binary
   crate.
 - **helloworld**: A trivial program. Gives a lower bound on compile time.

collector/compile-benchmarks/REUSE.toml

@@ -72,6 +72,11 @@ path = "diesel-1.4.8/**"
 SPDX-FileCopyrightText = "diesel contributors"
 SPDX-License-Identifier = "MIT OR Apache-2.0"
 
+[[annotations]]
+path = "diesel-2.2.10/**"
+SPDX-FileCopyrightText = "diesel contributors"
+SPDX-License-Identifier = "MIT OR Apache-2.0"
+
 [[annotations]]
 path = "encoding/**"
 SPDX-FileCopyrightText = "encoding contributors"

collector/compile-benchmarks/diesel-2.2.10/0-println.patch

@@ -0,0 +1,12 @@
+diff --git a/src/query_dsl/mod.rs b/src/query_dsl/mod.rs
+index 8be915e7..6da19ecc 100644
+--- a/src/query_dsl/mod.rs
++++ b/src/query_dsl/mod.rs
+@@ -119,6 +119,7 @@ pub trait QueryDsl: Sized {
+     where
+         Self: methods::DistinctDsl,
+     {
++        println!("testing");
+         methods::DistinctDsl::distinct(self)
+     }
+ 

collector/compile-benchmarks/diesel-2.2.10/perf-config.json

@@ -0,0 +1,4 @@
+{
+  "artifact": "library",
+  "category": "primary"
+}