chore: checkpoint before Python removal

vendor/semver/benches/parse.rs

@@ -0,0 +1,24 @@
+#![feature(test)]
+
+extern crate test;
+
+use semver::{Prerelease, Version, VersionReq};
+use test::{black_box, Bencher};
+
+#[bench]
+fn parse_prerelease(b: &mut Bencher) {
+    let text = "x.7.z.92";
+    b.iter(|| black_box(text).parse::<Prerelease>().unwrap());
+}
+
+#[bench]
+fn parse_version(b: &mut Bencher) {
+    let text = "1.0.2021-beta+exp.sha.5114f85";
+    b.iter(|| black_box(text).parse::<Version>().unwrap());
+}
+
+#[bench]
+fn parse_version_req(b: &mut Bencher) {
+    let text = ">=1.2.3, <2.0.0";
+    b.iter(|| black_box(text).parse::<VersionReq>().unwrap());
+}